The BMW E63/E64 is the current automobile platform of the BMW 6 Series of luxury coupés, introduced in 2004 by German car manufacturer BMW. It comes as either a coupé or cabriolet (convertible) and in several engine variants ranging from a 3 liter straight-6 to 5 liter V10 in the M6 model. In 1989 the original 6 Series was supplanted by the more expensive and higher performance 8 Series. In late 2003, the 6 Series was reintroduced as a 2004 model, with coupé and convertible versions based on the BMW E63 and BMW E64 platforms, respectively. The E63/64 itself is based on the BMW E60, the latter which forms the current iteration of the 5 Series sedan. The E63/E64 currently competes with the Mercedes-Benz CLS-Class in that price point, though BMW is rumored to to have plans to revive the 8 Series name for a potential four-door coupe in that segment.
