# 2013-2018 BMW M6 Gran Coupe The M6 Gran Coupe blends four-door practicality with supercar performance, powered by a twin-turbo 4.4L V8 producing 560 horsepower (575 in Competition models). This low-slung executive express rockets to 60 mph in 3.6 seconds while offering genuine rear seats and a spacious trunk. Reviewers praise its intoxicating engine note, surgical handling, and luxurious cabin, though some criticize its firm ride and complex iDrive interface. It's infamous for eye-watering maintenance costs and potential reliability issues, particularly with electronics and the dual-clutch transmission. Best suited for enthusiasts seeking a daily-drivable exotic alternative—combining M5 practicality with coupe-like styling. Today, it appeals to buyers wanting dramatic presence and blistering performance without SUV compromises, though budget-conscious shoppers should prepare for expensive upkeep on this temperamental Bavarian thoroughbred.
The M6 Gran Coupe has notoriously high maintenance costs, with the complex S63 twin-turbo V8 requiring expensive services every 6,000 miles. Common issues include rod bearing failures ($7,000-10,000 fix), problematic SMG transmission, and costly carbon ceramic brake replacements ($15,000+). Insurance rates are premium-tier. Depreciation is severe, though this benefits used buyers.
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