sold. The only available engine was the 1.9 M-Jet diesel with . 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 it was 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 . 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. Special versions Alfa Romeo 156 GTAm 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 engine was bored to and power was increased to . The car had widened wheel arches, 19 inch tyres and was equipped with N.Technology limited slip differential. This car never reached production phase. Alfa Romeo 156 Sportwagon GTA 3.5 Autodelta At the 2004 Geneva Motor Show Italian-based tuning firm Autodelta unveiled a 156 Sportwagon prototype equipped with a V6 engine that developed at 6,800 rpm. The car was fitted with Bilstein adjustable shock absorbers, Eibach springs and Brembo front brakes with a diameter of . Weight was reduced using a composite engine bonnet. Autodelta 156 GTA 3.7 V6 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 , making it capable of at 7,300 rpm. With this, the car could attain a top speed of and accelerate to 100 km/h in 5.2 s. The GTA AM Super was an upgrade of the first version, now fitted with a Rotrex supercharger and rated at . Specifications Platform and suspension 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. 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