The A4 is often seen as the epitome of the mid-size sports car category. With the arrival, this year, of the new 3.0-litre turbo V6 engine, the A4 now has enhanced performance capabilities and better fuel efficiency. The fabulous S4 is also available, with road handling and performances that put it in a category of its own. The old S4’s V8 engine has been replaced by a new 333 horsepower V6.