Introduced for the 2007 model year, the M6 Convertible - Automatic was a variant of the E63 BMW M6. The M6 convertible was built on the E64 platform, and featured BMW's S85 engine. This naturally aspirated 5.0L V10 engine generated 500hp and 384 lb ft of torque that was sent to the rear wheels through a 7 speed SMG automatic gearbox. Production of the automatic-equipped E64 BMW M6 convertible ended in 2010.