The second generation of the BMW 6 Series consists of the BMW E63 (coupe version) and BMW E64 (convertible version) grand tourers. The E63/E64 generation was produced by BMW from 2003 to 2010 and is often collectively referred to as the E63.
The E63 uses a shortened version of the E60 5 Series chassis and subsequently shares many features. The car initially drew criticism, due to its controversial styling and complicated iDrive system.[2][3]
The M6 model was introduced in 2005 in coupé and convertible body styles. It is powered by the S85 V10 engine shared with the E60 M5, and most M6s were produced with a 7-speed automated manual transmission ("SMG III").
In March 2011, the BMW 6 Series (F06/F12/F13) began production as the successor to the E63.