Presidential state car (United States)

Taft's 1911 White steamer

President William Howard Taft changed things at the White House, converting the stables there to a garage and purchasing a four-car fleet[9] on a budget of $12,000 (equivalent to about $391,000 in 2022):[11] two "luxurious" Pierce-Arrow cars, a Baker Motor Vehicle electric car, and a $4,000 (equivalent to about $130,000 in 2022) 1911 White Motor Company steam car. President Taft became a fan of the steam car when he discovered he could conceal himself from press photographers with a "carefully timed burst of steam."[9]

One of three Pierce-Arrow cars purchased by the Wilson administration

President Woodrow Wilson was such a fan of the three Pierce-Arrow cars purchased by his administration that he bought one of them from the government for US$3,000 (equivalent to $49,220 in 2022) when he left office in 1921. President Warren G. Harding was the first president to use a car to drive to his inauguration, and was the first qualified driver to be elected president.[9] President Herbert Hoover had a Cadillac V-16.[11]

In 1936, President Franklin D. Roosevelt bought a Ford V8 Phaeton coupe and had it equipped with hand controls in direct contravention of a Secret Service directive prohibiting sitting presidents from getting behind the wheel of a car.[9]

Sunshine Special
December 2013 at The Henry Ford
Overview
Manufacturer	Lincoln Motor Company
Body and chassis
Class	Limousine
Platform	Lincoln K-series
Dimensions
Wheelbase	160 inches (4,100 mm)
Curb weight	9,300 pounds (4,200 kg)

In December 1939, President Roosevelt received a 1939 Lincoln Motor Company V12 convertible—the Sunshine Special.[9] The Sunshine Special (so named because the top was frequently open)[12] became the president's best-known automobile, the very first to be built to Secret Service specifications, and the first to be leased rather than bought.[9] Built on the chassis of the Lincoln K-series,[12] the Sunshine Special has a 160-inch (4,100 mm) wheelbase, room for 10 passengers, rear doors hinged backwards, heavy-duty suspension, two side-mounted spare tires, and standing platforms attached to the exterior to accommodate Secret Service agents. The Sunshine Special underwent two sets of modifications. Firstly in 1941 the car's top was lowered 3 inches (76 mm) out of aesthetic concerns. Then, in 1942, after the attack on Pearl Harbor, the car underwent the addition of armor, one-inch (25 mm) bulletproof glass, "metal-clad flat-proof inner tubes, a radio transceiver, a siren, red warning lights, and a compartment for submachine guns." After the second set of modifications, the car weighed 9,300 pounds (4,200 kg) and was six feet (1.8 m) longer.[9]

Front and rear views of the Eisenhower "Bubble-top" at The Henry Ford (2013 & 2016, respectively)

Legend has it that Harry S. Truman held a grudge against General Motors because they would not give him use of their cars during his run for the 1948 presidential election; and, so, in 1950 he chose Lincoln to make the presidential state car.[12] The White House leased ten Lincoln Cosmopolitans. The cars were modified by coachbuilder Henney Motor Company[13] and Hess and Eisenhardt provided extra security features, with extra headroom to accommodate the tall silk hats popular at the time, and were painted black. Nine of the automobiles had enclosed bodies, while the tenth was an armored convertible especially for President Truman. The tenth Cosmopolitan was 20 feet (6.1 m) long, 6.5 feet (2.0 m) wide, and weighed 6,500 pounds (2,900 kg), 1,700 pounds (770 kg) heavier than a stock Cosmopolitan.[9] All ten cars were outfitted with 152-horsepower (113 kW) V8 engines "with heavy-duty Hydra-Matic transmissions."[14] In 1954, President Dwight D. Eisenhower had the Cosmopolitan convertible fitted with a Plexiglas roof that became known as the "Bubble-top"; it remained in presidential service until 1965,[9] and has approximately 105,942 miles (170,497 km) on the odometer.[15]

X-100
The X-100 at The Henry Ford in 2016
Overview
Manufacturer	Lincoln Motor Company
Body and chassis
Class	Limousine
Platform	Lincoln Continental
Dimensions
Curb weight	9,800 pounds (4,400 kg)

Presidents Radhakrishnan and Kennedy with the top down (June 1963)

President John F. Kennedy's 1961 Lincoln Continental was originally a stock car, built in Wixom, Michigan, and retailing for $7,347 (equivalent to $71,948 in 2022). The federal government leased it from the Ford Motor Company for $500 (equivalent to $4,896 in 2022) annually, and then commissioned Hess and Eisenhardt to modify it for presidential use—with a pricetag of $200,000 (equivalent to $1,958,575 in 2022). The convertible was painted "Presidential Blue Metallic", with silver metal flakes embedded within it; it was given the Secret Service code names of SS-100-X and X-100.[16]

The dark-blue car included a "heavy-duty heater and air conditioner, a pair of radiotelephones, a fire extinguisher, a first-aid kit, and a siren."[9] The car was 3.5 feet (1.1 m) longer than Lincoln's because Hess and Eisenhardt had added a "middle row of forward-facing jump seats that folded away when not in use."[16] The exterior featured improved, retractable standing platforms and handles for Secret Service agents, and flashing red lights recessed into the bumper. Unique to the X-100 were three sets of removable roofs (a standard soft top, a lightweight metal one, and a transparent plastic one) and a hydraulic lift that raised the rear cushion 10+1⁄2 inches (270 mm) off the floor. Both of these feature sets were designed to make the president more visible to the public, but they also increased the president's vulnerability—a factor in the 1963 assassination of John F. Kennedy).[9]

The modified X-100 at The Henry Ford in 2013

After the assassination, the "Death Car" (as named by the Associated Press), was redesigned in an operation named "The Quick Fix". Hess and Eisenhardt, the Secret Service, the United States Army Materials and Mechanics Research Center, PPG Industries, and Ford engineers all collaborated to strip the limousine and improve everything. In an effort to prevent "ghoulish collectors" from obtaining the discarded car parts, they were destroyed.[16] For an estimated cost of $500,000, the car was painted black and featured "improved telecommunications gear, a more powerful engine and flat-proof tires made of rubber-coated aluminum." The fuel tank was protected against explosion by a "porous foam matrix" that minimized spillage in the event of a puncture. The passenger compartment was protected by 1,600 pounds (730 kg) of armor, and the three removable roofs were replaced by a fixed glass enclosure that cost more than $125,000. The glass enclosure was made of 13 different pieces of bulletproof glass ranging in thickness from 1 to 1+13⁄16 inches (25 to 46 mm), and was then the largest piece of curved bulletproof glass ever made.[9] Titanium armor was added to the body of the car, the standard windows were made bullet-resistant with sandwiched layers of glass and polycarbonate vinyl, and prototype aluminum run-flat tires were added.[16] Due to an increase of 25 percent more weight—to 9,800 pounds (4,400 kg)—the upgraded car received a hand-built V8 engine that provided a 17% increase in power, to 350 horsepower (260 kW).[15]

In 1967, the convertible was modified again with an upgraded air conditioning system, an openable rear-door window, and structural enhancement to the rear deck.[9] Despite successive presidential state cars being built and delivered to the White House, the X-100 continued to be occasionally used by Presidents Lyndon B. Johnson, Richard Nixon, Gerald Ford, and Jimmy Carter until it was retired from service in early 1977. As of March 2021, it was publicly exhibited at The Henry Ford museum in Dearborn, Michigan.[17]

The license plates (DC plates, "GG-300") were removed from the X-100 when the vehicle was upgraded after the Kennedy shooting; when they were auctioned in 2015, they sold for $100,000 (equivalent to $123,459 in 2022).[18]

President Johnson preferred white convertibles, but "concerns for protocol and safety" had him receiving a black 1967 Lincoln Continental as his state car. The hardtop cost the Ford Motor Company about $500,000 (equivalent to about $4,390,000 in 2022); they in turn leased it to the federal government for $1 (equivalent to $8.78 in 2022) per year. With 4,000 pounds (1,800 kg) of armor, "a bubble top thicker than the protective cockpit of an F-16 fighter", and a 340-horsepower (250 kW) V8 engine, the 11,000-pound (5,000 kg) car could still reach speeds of 100 miles per hour (160 km/h) — or 50 miles per hour (80 km/h) with four flat tires. This car also served Presidents Nixon, Ford, and Carter, and traveled to 32 nations before it was retired in the mid-to-late 1970s. In 1996, the Ford Motor Company restored the car to its original state and donated it to the Richard Nixon Presidential Library and Museum; the auto manufacturer chose Nixon's library because he took the car on several of his most-significant presidential trips.[19]

Contemporary photo of the 1972-model car, Secret Service escorting

A modified, 22-foot (6.7 m),[9] 13,000-pound (5,900 kg)[12] 1972 Lincoln Continental was delivered to the White House in 1974. The six-passenger limousine was leased from the Ford Motor Company for US$5,000 (equivalent to $29,669 in 2022) per year and featured a 460-cubic-inch (7.5 L), 214-horsepower (160 kW) V8 engine. The fully loaded automobile also had external microphones to allow occupants to hear outside noises, full armor plate, bulletproof glass, and racks for the Secret Service to store submachine guns.[9]

The 1972 Lincoln presidential limousine at The Henry Ford (2016)

The car was used by Presidents Nixon, Ford, Carter, Ronald Reagan, and George H. W. Bush.[20] It was the vehicle in which Ford was shot at by Sara Jane Moore.[9] During the March 1981 attempted assassination of Ronald Reagan, the car was hit by the last two (of six) gunshots: the penultimate damaged the bulletproof window of the right rear passenger's door, while the last ricocheted off the back-right quarter panel and struck the president. The car then transported Reagan to George Washington University Hospital.[21] After the 1981 shooting, the car was returned to Ford to receive a new interior,[22] front sheet metal, and 1979 Lincoln grille.[20]

The 1972 car left service in 1992 with 40,617 miles (65,367 km) on its odometer.[15] After maintenance and care in 2008, The Henry Ford measured the car at 259 inches (6,600 mm) long, 79.6 inches (2,020 mm) wide, 61.1 inches (1,550 mm) tall, at 10,440 pounds (4,740 kg), with a wheelbase of 161 inches (4,100 mm).[20]

The 1983 Cadillac Fleetwood presidential state car

The next presidential state car was a 1983 Cadillac that was delivered on January 30, 1984.[9] This Cadillac Fleetwood is 17 inches (430 mm) longer and 3 inches (76 mm) taller than the stock Fleetwood. It featured armor and bulletproof glass (2+3⁄8 inches [60 mm] thick),[12] and was described as "distinctively styled, with a raised roof and a large rear greenhouse." To deal with the added weight of the armor, the car had oversized wheels and tires, heavy-duty brakes, and an automatic leveling system.[9]

The 1989 Lincoln Town Car presidential state car

The 1989 presidential state car that was delivered to the White House was a modified 1989 Lincoln Town Car that was 22 feet (6.7 m) long and more than 5 feet (1.5 m) tall.[9]

The 1993 Cadillac Fleetwood presidential state car

President Bill Clinton used a 1993 Cadillac Fleetwood as his presidential state car. It is currently on display at the Clinton Presidential Center in Little Rock, Arkansas, where it sits with all its doors closed to the public. Museum curator Christine Mouw noted that they can "dust the outside of the car, but if we needed to get inside it, we would have to contact the regional Secret Service office".[6]

CNN interviewed Joe Funk, a former Secret Service agent and driver of Clinton's presidential state car during part of his tenure. Funk described a dichotomy of the car: while the president is wholly cut off from the outside world by the armor and bulletproof glass of the vehicle, he has at his fingertips communication capabilities including phones, satellite communications, and the Internet.[10]

President George W. Bush's presidential limousine in Zagreb

In 2001, for the first inauguration of George W. Bush, Cadillac no longer produced a car suitable for conversion into a presidential limousine.[12] Furthermore, the additional armor and amenities that were added to the state car by the Secret Service taxed previous presidential limousines beyond their limits, resulting in failing transmissions and short-lived brakes. The George W. Bush state car was instead designed from the ground-up by "an R&D arm of General Motors in Detroit" to meet Secret Service specifications.[23] "[I]nformed speculation" had President George W. Bush's Cadillac Deville actually based on the chassis of General Motors' line of full-size sport utility vehicles such as the "Chevrolet Suburban, GMC Yukon[,] and Cadillac Escalade." This "Deville" featured five-inch (130 mm) armored doors, and "bulletproof glass so thick it blocks out parts of the light spectrum." Rumored components of the car were sealed passenger compartments with their own air supply, run-flat tires, and a 454-cubic-inch (7.44 L) engine.[12] Confirmed accessories include "an integrated 10-disc CD changer, a foldaway desktop[,] and reclining rear seats with massaging, adaptive cushions."[4] This presidential state car was estimated to weigh approximately 14,000 pounds (6,400 kg).[12] Bush's presidential state car was nicknamed "The Beast", a name that persisted through the presidency of Donald Trump. When traveling, President Bush took along two of the armored limousines (flown by either C-5 or C-17), one for use and one for backup. This proved fortuitous during a 2007 trip to Rome where one of the presidential state cars stalled for five minutes on a street; the car was restarted, but was replaced with the backup limousine after President Bush reached his destination.[2] Sometimes, President Bush would instead use vehicles already present at his destination such as embassy motor pool cars or military assets, rather than transporting the presidential state car. The president never used non-American-governmental vehicles when overseas.[24]

Front and rear views of the 2009–2018 United States presidential state car

The 2009–2018 presidential state car went into service on January 20, 2009, and drove President Obama the two miles (3.2 km) down Pennsylvania Avenue from his inauguration to the inaugural parade. A Cadillac, the presidential state car was not based on any single model of car,[10] though it had the "dual-textured grille and the dinner plate-sized Cadillac coat-of-arms badge" emblematic of the Cadillac CTS and the Cadillac Escalade. The headlights and taillights were identical to those used on other Cadillac production models. Anton Goodwin of CNET's Road/Show blog noted that speculation was that the presidential state car was based on the GMC Topkick platform. If that is to be the case, then Goodwin assumed the car would feature either a gasoline-powered 8.1-liter (490 cu in) V8 General Motors Vortec engine or a diesel-powered Duramax 6.6-liter (400 cu in) turbo V8 engine.[5] Autoweek magazine asserted that the car ran on a gasoline-fueled engine.[23] This presidential state car was speculated to be much heavier than its predecessor as it is equipped with Goodyear Regional RHS tires that are usually reserved for medium- and heavy-duty trucks; speculated weights range from 15,000 to 20,000 pounds (6,800 to 9,100 kg).[12] Due to the weight of the car, it could only reach about 60 mph (97 km/h), and only achieved 3.7 to 8 miles per US gallon (64 to 29 L/100 km; 4.4 to 9.6 mpg_‑imp).[3][23] The limousine was reported to cost between $300,000 and $1,500,000 (equivalent to about $400,000–1,900,000 in 2022).[1][23] The presidential state car was maintained by the United States Secret Service.[25]

President Barack Obama and then-Vice President Joe Biden riding in a presidential state car

The car had more five-inch (130 mm)[26] bulletproof glass than the previous model. It also had run-flat tires and an interior that was completely sealed to protect the occupants in the event of a chemical attack.[27] The 2009 presidential state car model had night vision optics, a tear gas cannon, onboard oxygen tanks, an armored fuel tank filled with foam to prevent explosion, and pump-action shotguns.[1][23] Whether it was[26] or was not armed with rocket-propelled grenades,[23] the car featured eight-inch (200 mm) doors. General Motors spokeswoman Joanne K. Krell said of the presidential state car, "The presidential vehicle is built to precise and special specifications, undergoes extreme testing and development, and also incorporates many of the top aspects of Cadillac's 'regular' cars—such as signature design, hand-cut-and-sewn interiors, etc."[10] The curator of The Henry Ford told The Dallas Morning News that President Obama's state car was "a tank with a Cadillac badge."[16]

Washington, D.C. license plate

In 2013, the presidential state car was outfitted with standard Washington, D.C. license plates that read "TAXATION WITHOUT REPRESENTATION" in reference to the district's lack of representation in the United States Congress. The switch came after the D.C. city council petitioned the president to use the plates on his motorcade, which would be seen by millions of people as the president headed down Pennsylvania Avenue for his second inauguration.[28]

When first commissioned by the Secret Service in 2014,[29] General Motors (GM) was awarded three contracts for the new limousine. Each state car was expected to cost US$1–1.5 million, and by January 2016, GM had been paid $15,800,765 (equivalent to $19,266,768 in 2022) for its work on the new model.[30]

After prototypes of the new model were seen driven on public roads wrapped in monochromatic multi-scale camouflage, Cadillac confirmed to Fox News that "We've completed our task and we've handed over the vehicle to the customer". The Secret Service confirmed that the program to replace the presidential car was "on track and on schedule" and should be in service by late summer 2018. Fox News' Gary Gastelu opined that the camouflaged prototype looked similar to the Cadillac CT6.[31]

Joe and Jill Biden in the 2018 model

Still nicknamed "the Beast"[29] (as established with the 2001–2009 model),[2] the current model debuted with a trip by President Trump to New York City on September 24, 2018. Road & Track reported that "the design appears to be a simple evolution of the old model with more current Cadillac design cues, like an Escalade sedan." Road & Track described the state car as "massive and tall", and weighing 15,000–20,000 pounds (6,800–9,100 kg).[32] NBC News reported a weight of 20,000 pounds and the capacity to seat seven, and speculated that the limousine was intended to evoke the aesthetic of the Cadillac XT6.[29] Business Insider reported in 2019 that the Beast is actually built upon a GM truck chassis.[33] Car and Driver said that the car was built on the GMC TopKick platform, weighs as much as 15,000 pounds, has the headlamps from the Cadillac Escalade, and the grille emblematic of the Cadillac Escala concept car.[34]

In addition to defensive measures designed to protect the president, this state car also has stores of blood in the president's type for medical emergencies. The car is hermetically sealed against chemical attacks, and features run-flat tires, night-vision devices, smoke screens, and oil slicks as defensive measures against attackers. NBC reported that the car features armor made of aluminum, ceramic, and steel; the exterior walls have a thickness of eight inches (200 mm), the windows are multi-layered and five inches (130 mm) thick, and each door—believed to weigh as much as those on a Boeing 757—can electrify its handles to prevent entry.[29]

As of May 2019, the current model was used alongside the previous model.[33]

The presidential motorcade on 22 November 1963 consisted of the following vehicles and occupants, in the order in which the vehicles appeared:[35]

• The lead car, an unmarked white four-door Ford Mercury sedan:
  • Dallas police chief Jesse Curry (driver)
  • Secret Service SA advance agent Winston Lawson (right front)
  • Dallas County sheriff Bill Decker (left rear)
  • Secret Service SAIC agent Forrest Sorrels (right rear)
• Presidential limousine, a midnight blue four-door 1961 Lincoln Continental Convertible (modified) (SS-100-X):
  • Secret Service driver agent William Greer (driver)
  • Secret Service ASAIC Roy Kellerman, in charge of the White House detail for the Texas trip (right front)
  • Nellie Connally (left middle)
  • Texas governor John Connally (right middle)
  • First Lady Jacqueline Kennedy (left rear)
  • President John F. Kennedy (right rear)
• Motorcycle escorts for the presidential limousine:
  • Dallas police officer Billy Joe Martin (left)
  • Dallas police officer Robert W. "Bobby" Hargis (left)
  • Dallas police officer James M. Chaney (right)
  • Dallas police officer Douglas L. Jackson (right)
• Secret Service follow-up car, a black four-door 1956 Cadillac Touring convertible (SS-679-X) code-named "Halfback":[36]
  • Secret Service driver agent Sam Kinney (driver)
  • Secret Service ATSAIC Emory Roberts (right front)
  • Secret Service SA Clint Hill, in charge of the First Lady's security (left front running board)
  • Secret Service SA William T. McIntyre (left rear running board)
  • Secret Service SA Jack Ready (right front running board)
  • Secret Service SA Paul Landis (right rear running board)
  • Presidential aide Kenneth O'Donnell (left middle)
  • Presidential aide David Powers (right middle)
  • Secret Service driver agent George Hickey (left rear)
  • Secret Service SA Glen Bennett (right rear)
• Vice President's car, a steel grey four-door 1964 Lincoln convertible:
  • Texas state policeman Hurchel Jacks (driver)
  • Secret Service ASAIC Rufus Youngblood (front passenger)
  • United States Senator Ralph Yarborough (left rear)
  • Second Lady Lady Bird Johnson (middle rear)
  • Vice President Lyndon B. Johnson (right rear)
• Vice Presidential Secret Service follow-up car, a yellow four-door 1964 Ford Mercury sedan, model 54A Monterey with Breezeway design hardtop, code-named "Varsity":
  • Texas state policeman Joe Henry Rich (driver)
  • Vice-presidential aide Cliff Carter (front middle)
  • Secret Service SA Jerry Kivett (right front)
  • Secret Service SA Woody Taylor (left rear)
  • Secret Service ATSAIC Lem Johns (right rear)
• Mayor's car, a white two-door 1964 Ford Mercury Comet Caliente convertible, model 76B with red interior:
  • Texas state policeman Milton T. Wright (driver)
  • Dallas mayor Earle Cabell (front right)
  • Elizabeth "Dearie" Cabell, the mayor's wife (left rear)
  • Texas congressman Ray Roberts (right rear)
• National press-pool car, a grey/blue two-door 1960 Chevrolet Bel Air sedan hardtop (on loan from Southwestern Bell):[37][38]
  • Telephone company employee (driver)
  • Malcolm Kilduff, White House assistant press secretary (right front); for this trip, Kilduff was substituting for Pierre Salinger, who was traveling to Japan with several cabinet officers, including Secretary of State Dean Rusk.[39][40][41]
  • Merriman Smith, UPI (middle front)[37]
  • Robert Baskin, The Dallas Morning News (left rear)
  • Jack Bell, Associated Press (middle rear)[42][43]
  • Bob Clark, ABC (right rear)
• Camera car #1, national motion-picture cameras, a yellow two-door 1964 Chevrolet Impala Super Sport (SS) convertible:
  • Texas state policeman Harlan E. Veasey (driver)
  • John Hofan, NBC sound technician (middle front)
  • Dave Wiegman, Jr., NBC cameraman (right front)
  • Thomas J. Craven, CBS cameraman (left rear)
  • Cleveland Ryan, lighting technician (middle rear)
  • Thomas "Ollie" Atkins, U.S. Navy, White House filmographer (right rear)
• Camera car #2, national still cameras, a silver two-door 1964 Chevrolet Impala convertible:
  • Driver
  • Clint Grant, Dallas Morning News photographer (right front)
  • Frank Cancellare, UPI photographer (middle right)
  • Cecil Stoughton, White House Communications Agency, White House photographer (left rear)
  • Arthur B. Rickerby, Life photographer (middle rear)
  • Henry Burroughs, Associated Press photographer (right rear)
• Camera car #3, local cameras, a grey two-door 1964 Chevrolet Impala convertible:
  • Department of Public Safety employee (driver)
  • James H. Underwood, assistant news director for KRLD-TV and KRLD radio, with motion-picture camera (middle front)
  • Thomas C. Dillard, Dallas Morning News photographer (right front)
  • James Darnell, WBAP-TV, with motion-picture camera (left rear)
  • Malcolm O. Couch, WFAA-TV, with motion-picture camera (middle rear)
  • Bob Jackson, Dallas Times Herald photographer (right rear)
• Congressmen's car #1, a white two-door 1964 Ford Mercury Comet Caliente convertible, model 76B with red top:
  • Driver
  • Congressman George H. Mahon, Lubbock, Texas (right front)
  • Congressman Walter E. Rogers, Pampa, Texas (left rear)
  • Congressman Homer Thornberry, Austin, Texas (middle rear)
  • Larry O'Brien, special assistant to the president (right rear)
• Congressmen's car #2, a white two-door Ford Mercury Comet Caliente, model 76D convertible:
  • Driver
  • Congressman Albert Thomas, Houston, Texas (middle front)
  • Congressman Jack Brooks, Beaumont, Texas (right front)
  • Congressman Lindley Beckworth, Gladewater, Texas (left rear)
  • Congressman Olin E. Teague, College Station, Texas (middle rear)
  • Congressman Jim Wright, Fort Worth, Texas (right rear)
• Congressmen's car #3, a grey 1964 Lincoln sedan:
  • Driver
  • Congressman John Young, Corpus Christi, Texas (right front)
  • Congressman Henry B. Gonzalez, San Antonio, Texas (left rear)
  • State senator William Neff Patman (middle rear)
  • Congressman Graham Purcell (right rear)
• VIP car, a four-door, nine-passenger 1964 Ford Colony Park Station Wagon, model 71D:
  • Maj. General Ted Clifton, U.S. Army, presidential military aide (driver)
  • Maj. General Godfrey McHugh, U.S. Air Force, presidential military aide (right front)
  • Julian Reed, Gov. Connally's press secretary (left rear)
• Two Continental Trailways press buses, a local press car (four-door Chevrolet hardtop), a Western Union car (black 1957 Ford hardtop), the White House Signal Corps car (a white four-door 1964 Chevrolet Impala Sedan hardtop carrying warrant officer Ira Gearhart, who carried the Presidential Emergency Satchel, also known as the "nuclear football"), the official party bus (Continental Trailways bus) carrying Evelyn Lincoln, the president's personal secretary and rear admiral George G. Burkley, the president's physician), several extra cars and police escorts.
• Abbreviations used above include:
  • SA: Secret Service Special Agent
  • SAIC: Special Agent in Charge
  • ASAIC: Assistant Special Agent in Charge
  • ATSAIC: Assistant to the Special Agent in Charge

Secret Service driver agents operated through their own command chain. Driver agents were typically recruited from the uniformed White House Police Force.[44]