The 2018 BMW M6 Convertible is a midsize luxury convertible offered in a single trim, starting off at a base MSRP of $122,300. For that price, it mainly competes with the Maserati GranTurismo Convertible and the Mercedes-Benz AMG SL 63 Convertible. Available in a single trim, the M6 Convertible offers 2 powertrains. It is a 4.4L twin-turbocharged V8 engine making 560 horsepower and 500 lb-ft of torque. However, there is a choice between a 6-speed manual transmission and a 7-speed dual-clutch automatic transmission. The M6 Convertible reaches 60 mph from zero in 4.0 seconds with the manual transmission, which gets pumped up to 3.7 seconds with the automatic. Depending on the powertrain, the M6 Convertible can manage a combined fuel economy of between 16 and 17 mpg. While we’re on the topic of choices, the 15 striking colors the M6 Convertible comes in really pull you towards itself.