The Audi A4 B6, internally designated as Type 8E, was launched in 2000 under the B6 platform. It had the same 1.6 liter engine but other improvements, mainly on the engineís power and displacement, were done on the lineup. The 1.8 liter 20 valve Turbo had additional variants. The 150 or 180 PS had the standard gearbox. The 2.0 liter engine and the all aluminum engine 3.0 liter engine replaced the old 1.8 liter 4 cylinder and the 2.8 liter V6 engine. The 3.0 liter all aluminum engine produces 220 PS (162 kW) and 300 Nm of torque. Another upgrade is in the 1.9 TDI engine. The engine was given more power and now produces 130 PS. It also became available with the Quattro. At the same time, the 2.5 V6 TDI was introduced. This new top of the line model had 180 PS (132 kW) and came with standard Quattro. The models with standard Quattro had 50:50 torque distribution.
In 2002 the 1.8 Turbo was upgraded by Audi to produce up to 163 Ps (120 kW) and190 PS (140 kW). The 190 PS (which had a red T) and the 2.5 TDI with 163 PS come standard with the Quattro. Audi also offered the 2.0 engine with Audiís Fuel Stratified Injection. Then the following year, 2003, Audi released the new S4 and the A4 Cabriolet Convertible. The S4 was given more power, it now had 344 PS (253 kW), and had the 4.2 liter V8 engine. The A4 Cabriolet Convertible, designated Type 8H, replaced the Audi 80 Cabriolet which had long been phased out. The new A4 Cabriolet had an automatic hood which can be put down in less than 30 seconds. It also had some innovative designs and styles, particularly the sill panels and the body colored bumper, which later on can be seen in the saloon variant.
The innovative and exalted Audiís Tiptronic on the front wheel drive models was replaced by the new Multitronic, a continuously variable transmission. The Multitronic transmission was developed by Luk and was considered as one of the best transmission ever made. It is particularly praised for its quick response and light weight quality. However, the Multitronic transmission can only be used on models with 310 Nm (229 ft/lb) maximum torque.
The new Audi A4 B6 also had a new facelift. The redesigned A4 had a new style to fit its new power and performance. The new style had its inspiration from the Audi A6 and similar with the A6, the top edge was removed to give way for a smoother fold line.
As with its predecessor, the new Audi A4 B6 Ultra Sport Package was introduced for the North American market. Just before the B7 replaced the A4 B6 the Ultra Sport Package was launched for that specific market. The Ultra Sport Package had the A4 B6 in aluminum interior trim and door sills, front and rear spoilers, 18 in RS4 replica wheels, S Line steering wheel and side valence as on the Audi S4.
The B5 was replaced in 2000 by the new B7 Audi A4
Competition: Mercedes-Benz and BMW