The mild redesign follows on from the recent refresh of the standard A4 and is limited mostly to a revised front end design and enhanced interior technology.
The RS4’s front grille, bumper and lower splitter have been overhauled to further distance the performance variant from the standard model and bring it into line with the new RS6 Avant, which sports a notably more aggressive stance than the outgoing RS4.
The gloss black honeycomb grille featured across Audi Sport’s range of top-rung RS models has been designed without a frame to sit flush with the bumper. The model’s LED headlights have also been reshaped and can now be specified with darkened bezels.
As is tradition with Audi’s sportier models, the wheel arches are substantially flared to accommodate wider wheels and tyres, the RS4 measuring a full 30mm wider overall than the standard A4 at the front and rear.
Inside, the facelifted model receives a new 10.1in infotainment touchscreen, equipped with Audi’s new MMI acoustic response technology, in place of the outgoing car’s rotary controller.
A new digital instrument panel can display drive system component temperatures, g-forces, tyre pressures, power output, lap times and acceleration measurements. It also features a shift light display to assist the driver with gearchange timings.
There are no changes to the RS4’s turbocharged 2.9-litre V6, which still produces 444bhp and 443lb ft – enough to give the car a 0-62mph time of 4.1sec and top speed of up to 174mph.
The new RS4 Avant will make its public debut at this weekend’s DTM season finale at the Hockenheimring, ahead of sales beginning later this month.