Audi RS3 Sportback Packs a Mighty Punch

German tuning firm Motoren Technik Mayer, aptly known as MTM, has a knack for improving the performance of any Volkswagen Group model. The firm\'s most recent project concerns the Audi RS3 Sportback that is normally powered by a 2.5-liter turbocharged inline-five generating 340-horses and 450 Nm (331 lb-ft) of torque, which are good for a 0 to 100 km/h (62mph) acceleration time of 4.6 seconds and a limited top speed of 250km/h (155mph). MTM offers buyers a choice of three engine packages, the first of which includes a modified ECU that lifts output to 410HP and 550Nm (406 lb-ft). The second stage kit adds a downpipe together with a new intercooler and exhaust system that helps up power to 424HP and 560Nm (413 lb-ft). Finally, the most extreme option is the Stage 3 kit that brings in a new turbocharger pushing output to 472HP and 600Nm (443 lb-ft). Other available choices include the removal of the speed limiter, exterior and interior bits along with bespoke paint jobs like the one seen here and MTM\'s own alloy wheel designs.