Audi is celebrating the 25th anniversary of the TDI engine by unveiling the RS5 TDI concept at AMI Leipzig.

As the name suggests, the car is based on the RS5 Coupe but it eschews the 4.2-liter V8 petrol engine for a twin-turbo 3.0-liter V6 TDI which has been equipped with an electrically driven supercharger that promises to eliminate turbo lag.

The engine produces 385 PS (283 kW) and 750 Nm (553 lb-ft) of torque and is connected to an eight-speed automatic transmission which sends power to a quattro all-wheel drive. This setup enables the coupe to accelerate from 0-100 km/h in approximately four seconds, hit a top speed in excess of 280 km/h (174 mph) and consume less than 5 L/100km (47 mpg US / 56.4 mpg UK).

For comparison, the standard RS5 has 450 PS (331 kW) and 430 Nm (317 lb-ft) of torque which enables it to run from 0-100 km/h in 4.6 seconds before hitting an electronically-limited top speed of 250 km/h (155 mph).

Gallery: Audi RS5 TDI concept announced for AMI Leipzig

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