Since Audi’s not planning to introduce an RS version of the A3 any time soon, O.CT Tuning, an Austrian company located at The results: 328 hp and 425 Nm (313 lbs-ft) as opposed to 265 hp and 350 Nm (258 lbs-ft) in stock form.0-100 km/h times (0-62 mph) drop from 6,4 to 5,7 seconds, 0-160 km/h (0-100 mph) is reduced from 14,3 to 12,74 seconds. Top speed also increases from 250 km/h (155 mph) to 265 km/h (165 mph). In terms of chassis upgradesm, a fully adjustable O.CT-coilover suspension is available for €1,499 or $2,200) while an 8-piston brake caliper system with 372 mm discs/rotors costs at the front axle, €3,850 or $5,650. O.CT D7 19-inch alloy wheels (8,5 x 19 inch, €2,440 or $3,580 without tires) in various colors (black, super polished, etc.) complement the look of the O.CT Tuning S3. Customers seeking additional individual touches can opt for carbon-fibre covers for the engine, battery and air intake (prices start at €370 or $542).