The M6 model was released in 2005 in coupé and convertible body styles. It is powered by the S85 V10 engine and most cars were sold with a 7-speed automated manual transmission ("SMG III"). Customers who wanted a fast four-door M6 Gran Coupe had to wait till November 2013 to get an M6 Gran Coupé, whereas the F12 coupe and F13 convertible M6 models were unveiled in May 2013 for the F12 M6 coupé, and July 2013 for the F13 M6 convertible.