The 2010 BMW M3 is a high-performance luxury sports car. The M3 is available as a two-door coupe or convertible, and as a four-door sedan. Under the bulbous hood is a 4.0L V8 which screams to an astonishing redline above 8,000 RPM and generates 420 hp. This action is controlled by a six-speed manual transmission but a dual-clutch seven-speed paddle-shifted automatic is also available. The updated iDrive system keeps everything under control on the inside and is within easy reach of the driver.