This 2017 BMW M6 coupe is finished in Space Gray Metallic over black leather and is powered by a twin-turbocharged 4.4-liter S63 V8 mated to a six-speed manual transmission and a limited-slip differential. The car was sold new by BMW of Palm Springs, California, and was recently acquired by the seller. Factory equipment includes the Driver Assistance Plus package, 20″ M-forged alloy wheels, a Harman Kardon surround sound system, adaptive LED headlamps, soft-close automatic doors, and multi-function…