Audi is marking 40 years of its famous Quattro all-wheel-drive system with a limited-edition version of the TT RS sports car.

Simply called the Audi TT RS 40 Years of Quattro, just 40 versions of this model will be produced to mark the anniversary.

The TT RS is already the most powerful TT ever produced – featuring the same 394bhp five-cylinder petrol engine found in the RS3 and RSQ3, which allows a 0-60mph time of 3.7 seconds and a top speed of 174mph.

Audi hasn’t messed with that, so it’s specifically styling tweaks here. All versions come painted in Alpine White, with a special livery used throughout the car that harks back to the Audi Sport Quattro S1 that scooped Pike Peaks victory in 1987.

It also comes with a carbon bonnet vent and a new Aero Kit, which includes side flicks, a front splitter and a new spoiler. Gloss black details feature throughout, while 20-inch alloy wheels housing ventilated and perforated steel discs with red brake callipers also feature.

Inside there’s the option to strip out the small and impractical rear seats and replace them with a carbon strut cross brace – helping to save weight off the TT and improve torsional rigidity. The cabin also comes with leather and Alcantara sports seats, featuring a special anniversary embroidery and a numbered badge to mark the limited production.

The bad news? All models are destined for Germany, where they will cost from €114,040 (£103,000) – almost double that of the standard TT RS’s £56,655 starting price.

The Audi Quattro debuted in 1980 with its new all-wheel-drive system, and was originally just intended to be a limited-run coupe, though high demand meant it soon entered full production.

Today, the firm’s Quattro all-wheel-drive system is available across most of Audi’s range – from sensible saloon cars like the A4 through to the R8 supercar, along with the electric e-tron SUV.