An all-new Passat, based on the Volkswagen Group B5 platform, was launched in 1996 in Europe, and 1998 in North America. Its PL45 platform was shared with the first-generation "Typ 8D" Audi A4, which was unveiled 2 years earlier, and saw a return to the Passat sharing its platform with Audi's equivalent model for the first time since the second-generation (B2) Passat, which shared its platform with the second-generation "Typ 81" Audi 80/Audi 90 (the A4 is the successor to the Audi 80 line)., The Passat introduced a new design language, first seen on the Concept 1 concept car, for the latest generation of Volkswagens such as the Mk4 Golf, Bora and Polo Mk4. Aerodynamic work gave the B5 Passat a coefficient of drag of 0.27 (saloon model)., The car featured fully-independent four-link front suspension; and a semi-independent torsion beam for front-wheel-drive models or a fully-independent suspension on the 4motion 4WD models. Three transmission options were available: a 5-speed manual transmission, a 6-speed manual transmission (codename 01E) and a 5-speed automatic transmission with tiptronic., , 2001–2004 Volkswagen Passat SE V6 sedan, B5 Passat models built after late 2000, also known as B5.5 models, received minor styling and mechanical revisions including revised projector-optic headlights, bumpers, tail lights, and chrome trim., A 4.0 litre W8 engine producing 275 PS was introduced in 2001 in a luxury version of the car that included standard 4motion all-wheel drive. This engine was intended to be a test bed for Volkswagen Group's new W engine technology, which would later make an appearance on the W12 in the Phaeton and Audi A8, and the W16 engine in the Bugatti Veyron. The engine was discontinued in 2004., , The 4.0 litre - 244.0 cu in W8 engine produced (275 PS; 271 bhp) at 6,000 revolutions per minute (rpm) and (273 ft·lbf) of torque at 2,750 rpm, yet was considered a fuel-efficient eight cylinder engine due to the design. It also had a two stage resonance induction system to boost cylinder filling across the engine speed range. It had two simplex roller chain-driven (relay method, using three chains) double overhead camshaft (two overhead camshafts per cylinder bank, hence "quad cam"), and twin balance shafts to smooth out residual vibrations inherent in the layout. One additional advantage was that the W8 shared some components and machining with narrow-angle VR5 and VR6 engines, leading to cost reduction in one of the most expensive engines Volkswagen Passenger Cars has ever produced.