Audi A4 Avant
Audi introduced a revised A4 in late 2004, with the internal designation of B7. However, this new range A4 still utilized the existing Volkswagen B6 platform, a chassis derived from the outgoing B6, but enjoyed heavily revised steering settings, suspension geometry, new internal combustion engine ranges, navigation systems and chassis electronics.
The 2005 introduction of Fuel Stratified Injection (FSI) on the 2.0 TFSI and 3.2 V6 FSI petrol/gasoline engines, as well as other refinements, increased power output to 197 bhp and 252 bhp, respectively. These engines both implement a four-valve per cylinder design. The 2.0 Turbocharged Direct Injection (TDI) diesel engine now combines (PD) technology with 16 valves for the first time, while the larger 2.5 TDI V6 diesel was superseded by a 3.0 V6 TDI, offering a 201 bhp model during the year 2005.
Source: Wikipedia, 2011