Fifth Gear’s Tiff Needell takes the 2008 Audi RS6 Avant out for a road test in this segment. This vehicle is powered by a twin-turbocharged V10 that produces 580hp and 479 lb-ft torque, rocketing it from 0-60mph in just 4.6-seconds. Video after the break. Click here for first picture in gallery.

Thanks to FSI technology and the optimised design of the turbocharger and air ducts, the ten-cylinder unit is extremely responsive and converts minimum movements of the throttle into dynamic acceleration

[via SeriousWheels]