The top of the line variant for the F12 BMW 6 Series was the M6. Introduced for the 2012 model year, the M6 was available in each of the body styles offered in the F12 6 Series (convertible, coupe, and Gran Coupe). All BMW F12 M6 models were fitted with BMW's S63 4.4L twin turbo V8 engine. This powerplant produced 560hp in standard guise, although performance figures vary due to weight differences across body styles. In 2014 BMW introduced a Competition Package, which increased dynamic ability as well as power. In 2016, a more powerful Competition Package was introduced, featuring a 591hp. BMW changed their model structure in 2019, making the follow up to the M6 the M8, as the 6 Series was shifted to a four door Gran Coupe model.