Alfa Romeo 156

Interior of the first series facelift (2002)

The original interior uses a scalloped upper dashboard and a simple centre console. The main controls and displays are angled to the driver. The interior design lacks cup holders.

The 156 Sportwagon features fold-down rear seats to increase the luggage area normally covered by a privacy screen.

2002 saw an update to both the interior and exterior of the 156.

2002 also saw the arrival of a facelifted interior with different matte-finish surfacing and chrome highlights. This new version featured the 147's dual-zone digital climate controller while the interior climate could also be controlled via an air quality sensor.[18] A different choice of colours were available for the interior, with the option of a two-tone interior very much like that on offer from its European rivals. A wider range of options including xenon lighting, tele-informatics (CONNECT and CONNECT NAV) and a Bose stereo system were available, the stereo system could now also be operated via buttons on the steering wheel. Also, the Selespeed gearbox control system was updated, buttons on the steering wheel were replaced by paddle shifters, as seen on the earlier Alfa Romeo 147. In the center console, the designers added a multifunctional display with trip computer, fault, and service monitor.

The upgrade also included electronic stability control VDC (Vehicle Dynamic Control) with an emergency brake assist device and slip control ASR (Anti Slip Regulation) came as standard. Additionally, an MSR (Motor Schleppmoment Regelung) was added to the car, this device prevents wheel skidding by restoring torque to the engine for example when the gear is shifted down abruptly under conditions of low grip. Passive safety was also made better, all versions got window airbags as standard. The 2.0 L JTS 165 PS (121 kW) engine with gasoline direct injection replaced the 2.0 litre Twin Spark engine, offering more low end torque and more power than the Twin Spark. The diesel engines were also uprated. The only notable difference exterior-wise was body-coloured mirrors and bumper strips which were earlier black.

Late 2003 saw the launch of a facelifted 156, with new front and rear fascias designed by Giorgetto Giugiaro.[19] A new top-of-the-line model was added to the line up called TI (Turismo Internazionale) designating a sporty kit, this version was equipped with modified suspension, bigger wheels (215/45 17") and leather-trimmed interior. The GTA models never received the exterior update. Diesel engines underwent a major overhaul which included a new four-valve per cylinder heads and a second stage common rail injection with 1400 bar maximum injection pressure with up to five injections per cycle for lower noise, consumption, and higher performance. They were rated at 140/150 PS (103/110 kW) for straight-4 1.9 litre 16-valve and 175 PS (129 kW) for straight-5 2.4 litre 20-valve.

An early 156 (black mirrors and bumper strips)

2002 facelift version (body colour mirrors and bumper strips)

Front view: second series (2003) Sportwagon

Rear view (2002 facelift)

Rear view (2003 second facelift)

The 156 GTA and 156 Sportwagon GTA were launched at the Frankfurt Motor Show in September 2001. The GTA was named after the Alfa Romeo GTA from the 1960s, the letters GTA meaning Gran Turismo Alleggerita (English: lightened Grand Tourer). Developed alongside the 147 GTA,[20] it was an exclusive high-performance model hand assembled on a dedicated production line separate to the standard 156 models.

Development of the GTA styling models and engineering design was entrusted in early 2000 to Stola with styling data provided by Centro Stile. Stola completed six prototypes that were further mechanically assembled by Alfa Romeo. Two of those protypes were presented at the Frankfurt Motor Show.[21]

1,973 berlinas and 1,678 Sportwagons were built until the GTA production stopped in October 2005, as the V6 engine as unable to meet emissions regulations and due to the 156 being replaced by the 159.[20][22] The GTA was sold in limited numbers, with right-hand drive vehicles holding a premium over left-hand drive vehicles due to their rarity.

The very first GTA was sold via online auction, from 13 to 23 September, the duration of the Frankfurt Motor Show. Winning bid was €48,691.26, which was donated to "Telethon" charity fund.[23]

156 GTA

The 3.2-litre Bussone V6 engine (The big Busso, so-called after legendary Alfa Romeo engineer Giuseppe Busso). This engine is praised universally for its sound and revving capabilities.[24] This was the largest iteration of the engine built by Alfa Romeo. The engine has a 93 mm (3.7 in) bore and a 78 mm (3.1 in) stroke, displacing at 3,179 cc (194.0 cu in). It was rated at 250 PS (184 kW; 247 hp) and 300 N⋅m (221 lbf⋅ft) of torque. Overall, the car weighed 55 kg (121 lb) more than the standard V6 156.[25]

The GTA variants shared a common interior with post-facelift 156 variants. The doors, boot lid and bonnet were also shared. All else was unique to the GTA, with the engine specifically made by Fiat and Maserati Research Centres.[18]

The GTA did not receive the Giugiaro designed facelift introduced on the 156 in 2003, but continued with the acclaimed Walter de Silva design to the very end of production.

The steering was also made faster, only 1.7 turns from lock to lock compared to 2.1 in normal models. The GTA had also larger brakes (Brembo), at front 305 millimetres (12.0 in) discs and rear 276 millimetres (10.9 in). The front discs were later upgraded to 330 millimetres (13 in) to cope with the performance potential.

156 GTA Sportwagon Q4

In 2004 Sportwagon Q4, an all-wheel drive version of the Sportwagon was launched in some markets. The Q4 (short for Quadrifoglio 4) system used three differentials, the central one being of the Torsen C limited slip type; it added about 150 kg (331 lb) to the vehicle weight. Graziano Trasmissioni, the Turin-based transmission specialist, developed this system.[26] A raised ride height meant the Sportwagon Q4's was 1,458 mm (57.4 in) tall. Other than the ride height, special 5-spoke 17-inch wheels and a "Q4" badge on the tail set the Sportwagon Q4 apart from the front-wheel drive 156 versions. The Sportwagon Q4 was only available on LHD markets, with no RHD models being built or sold. The only available engine was the 1.9 M-Jet diesel with 150 PS (110 kW; 148 hp).

156 Crosswagon Q4

The Crosswagon Q4 was launched in 2004 with a crossover look and enhanced off-road capabilities. The Crosswagon's ride height was raised further compared to the Sportwagon Q4, giving the car better approach and departure angles; at 1,497 mm (58.9 in)[27] it was 6.5 cm (2.6 in) taller than a standard 156. Tall-sidewall all-season tyres on 17 inch wheels were standard. The only available engine was 1.9 M-Jet diesel rated at 150 PS (110 kW; 148 hp). The Crosswagon was made to look more like an all-terrain vehicle by unique front and rear bumpers and door sills with steel inserts. After the introduction of the 159 in 2005 the Crosswagon remained in production, and in 2007 it was the last 156 model to be discontinued.

The Alfa Romeo 156 GTAm was shown at the Bologna Motor Show in December 2002. The car was built by Fiat Group's partner N.Technology. The GTA 3,179 cc (3.2 L; 194.0 cu in) engine was bored to 3,548 cc (3.5 L; 216.5 cu in) and power was increased to 300 PS (221 kW).[28] The car had widened wheel arches, 19 inch tyres and was equipped with N.Technology limited slip differential. This car never reached production phase.

At the 2004 Geneva Motor Show Italian-based tuning firm Autodelta unveiled a 156 Sportwagon prototype equipped with a 3,548 cc (3.5 L; 216.5 cu in) V6 engine that developed 300 PS (221 kW) at 6,800 rpm.[29] The car was fitted with Bilstein adjustable shock absorbers, Eibach springs and Brembo front brakes with a diameter of 330 millimetres (13 in). Weight was reduced using a composite engine bonnet.[30]

Supercharged Autodelta 156 GTA.

London-based tuning firm Autodelta made two high performance versions based on the 156 GTA: in the GTA AM version, the Alfa Romeo V6 engine was bored to 3,750 cc (3.8 L; 228.8 cu in), making it capable of 328 PS (241 kW) at 7,300 rpm. With this, the car could attain a top speed of 282 km/h (175.2 mph) and accelerate to 100 km/h in 5.2 s.[31]

The GTA AM Super was an upgrade of the first version, now fitted with a Rotrex supercharger and rated at 400 PS (294 kW).[32]

The 156 uses a platform derived from the Alfa Romeo 155, which in turn was derived from the Fiat Group's "Tipo" platform. However, it is sufficiently different from the original "Tipo" one to be seen as a new platform.[33][34] The 156 is a highly developed front-wheel drive car; (the Cross/Sportwagon Q4 offered four-wheel drive in left-hand drive markets) with a double high wishbone front suspension and updated version of MacPherson type rear suspension,[2][35] which consists of a telescopic vertical strut with coaxial spring and two transverse links of different lengths and a longitudinal strut. This structure means that the rear wheels have a tiny passive steering ability.[14] Weight saving materials (mainly aluminium) have been used in several parts both front and rear suspension.

For the 156 GTA, weight saving materials were also used in many other parts like magnesium framed front seats and dashboard frame. The 156 GTA only shared common parts with other 156 variants with respect to the facelift interior, doors, bonnet and boot lid.[36]

The 156 offered various engines and power output choices during its lifespan, four and six cylinder petrol engines and four and five cylinder diesel engines, all produced at Pratola Serra except the V6 engines, which were produced at Alfa Romeo's Arese plant, with the GTA engines being produced at the Maserati Research Centre.[2][37][38][39][40] The 2.4 JTD diesel was world's first common rail diesel engine in a passenger car.[41]

1.6 L Twin Spark (TS) engine

2.0 L JTS engine

2.5 L V6 engine

2.4 L JTD engine

3.2 L V6 engine used in the GTA

Alfa Romeo 156 Coloni

Italian race car constructor Coloni made a one-off racing car prototype for FIA Group-E Formula Libre called the Coloni S1 Alfa Romeo 156, or 156 Maxiturismo.[47] The car is a carbon fibre silhouette racing car on a tubular frame,[48] powered by a 3.0 litre Alfa Romeo V6 engine rated between 380 and 500 hp (280 and 370 kW). The car has a 6-speed Hewland-Coloni sequential gearbox and weighs around 900 kilograms (2,000 lb). It is capable of attaining speeds of over 310 kilometres per hour (190 mph).[48]