The RS4 is ready to roll! Our spies have caught a development mule for the ultimate A4 during testing in Germany. And despite the S4 badge on its grille it's clear there's more than meets the eye.
Most obvious are the huge 21-inch wheels, destined to be an option on the finished car. Behind those are larger discs designed to cope with this car's extra performance over and above the 328bhp V6-engined S4. The bulging wheelarches have been stretched too, to accomodate a wider front and rear track for improved stability in the bends.
Up front the air intakes have been enlarged to provide additional cooling for the engine - likely to be the same 444bhp 4.2-litre V8 as the RS5, connected to a seven-speed S Tronic twin-clutch gearbox. Performace will be similar too, with a 0-62mph time in around 4.5 seconds and a 155mph limited top speed.
It will offer additional practicality over the RS5 though, with both Saloon and the Avant version shown here, going on sale. Expect to see the car officially unveilied some time later this year - possibly at the Frankfurt show in September.For more details click here.
Thanks to: Auto Express