“For all the "four-door coupe" nonsense floating around these days, it turns out that the 6-series Gran Coupe was a great idea.” — Car and Driver
“Jet up a freeway on-ramp and slide into fast-moving traffic, though, and the M6 suddenly begins to get into its element. It'll do 70 without batting an eye, but one suspects it is happiest closer to 140.” — AutoWeek
“Feels big and heavy around tight turns; modest rear-seat headroom and legroom.” — Edmunds.com
“Like BMW's M5 and M6 models, the high-performance heart of the new M6 Gran Coupe is the automaker's 4.4-liter Twin Power Turbo V8 that makes 560 horsepower and 502 lb-ft of torque. ” — Kelley Blue Book