Even if the previous RS4 Avant offered the same power and torque as the 2020 model year, Audi fitted the newer version with a gasoline particulate filter and a twin-turbo V6 unit.

Audi revealed the fifth generation of the A4 in 2015, but its hard-core fans awaited that particular version that went under the radar: the family-looking station wagon that came with an RS badge on it.

The third generation of the RS4 was offered exclusively as a station-wagon, following the path taken by its bigger brother, the RS6. It was a sports-car for a whole family and its luggage.

Audi RS4 jumped an entire generation of the Audi A4, on which it was based. Since there was no RS version for the B6, the B7 was the second generation of the fastest A4.

Audi introduced in 1999 the most powerful version of the A4 lineup, and it was available exclusively as a station wagon, a shape that, in the German automaker's inventory, wore the Avant nameplate.

The 2005 Audi RS4 was available as a sedan, station wagon, or convertible and under the hood had a big V8 engine. It had the biggest engine on any A4 to the time of launch.