07177 Audi A4 DTM 2009 "Tom Kristensen" ........................ Already in the 2008 season, the Audi A4, the most successful car to come out of Ingolstadt since Audi returned to the DTM, had created a record. The engineers therefore concentrated on detail modifications to a car that was already excellent. In particular the innovations were focussed on improvements to the air duct, visible in the new air box under the bonnet, the aerodynamics and minor amendments to the braking system. Output: 450 bhp!