Video at Geneva: Audi unleashes R8-chasing RS3 Sportback

Just when rivals thought it was safe to enter the mega-hatch turf war, Audi has come out fighting with the mega 335bhp RS version of the A3 Sportback, which was shown for the first time at the Geneva show.

The reason for this amazing power is the 2.5-litre five-cylinder turbocharged engine, which is borrowed from the Audi TT-RS. Thankfully, as with all hot Audi's Quattro four-wheel drive is fitted as standard, so there should be no problem making the most of all those horses.