BMW's all-new 2009 M3 convertible is powered by a "V-8 displacing 4.0 liters and developing maximum output of 309 kW/420 hp; maximum torque is 400 Nm/295 lb-ft at 3,900 rpm and maximum engine speed 8,400 rpm
BMW's new M3 Convertible was supposed to be unveiled in March, but several leaked photos led to a flood of official photos and information straight from BMW.