Audi RS3 Sportback. Big performance in a small package - the Audi RS3 Sportback is the newest member of the dynamic Audi RS family. Its turbocharged 2.5-liter five-cylinder engine pumps out 250 kW (340 hp) and delivers 450 Nm (331.90 lb-ft) of torque. During a quick trip to the UK recently, I was able to drive Audi's newest model in the RS lineup the RS3 Sportback.It is one of the candidates for the 2012 World Performance Car of the Year. The 2012 Audi RS3, some say it's really a budget hot hatch, you can buy it for around 35.000,-! With it's 2.5 litre 5-cylinder and 340hp, 450nm it brings you to 100 kmh in 4.6 seconds! Full. The Audi RS3 and the TT-RS share more than just a badge, they also have the same turbocharged 2.5-liter five-cylinder engine with an output of 340 horsepower and 332 lb/ft of torque. Audi RS3 Sportback 400HP ACCELERATION & TOP SPEED 290km/h AUTOBAHN POV Test Drive by AutoTopNL - Duration 2012 Audi RS3 (340hp) - pure SOUND! - Duration 142. swsthebest1994 29,123 views. Find Audi RS 3 for Sale. Find car prices, photos, and more. Locate car dealers and find your car at Autotrader.