Power & Performance

• Engine: Twin‑turbo 4.4 L S63 V8 delivering 560 hp and 500 lb‑ft of torque in standard trim; the Competition Package boosts output to 600 hp and 516 lb‑ft reddit.com+12edmunds.com+12edmunds.com+12.

• Transmission: 7‑speed dual‑clutch (M‑DCT); optionally available with a 6‑speed manual at no extra cost en.wikipedia.org.

• Drivetrain: Rear‑wheel drive with an Active M limited‑slip differential; Competition Package upgrades chassis, suspension, steering, and exhaust for sharper dynamics bmwgallery.ca+12edmunds.com+12pcarmarket.com+12.

• 0–60 mph: ~4.1 s (standard) or ~3.8–3.9 s with Competition .

• Top speed: Electronically limited to 250 km/h (155 mph); raised to ~305 km/h (190 mph) with M Driver’s Package edmunds.com+3en.wikipedia.org+3motortrend.com+3.

🎯 Handling & Driving Impressions

• The M6 GC is praised for crisp DCT shifts and an engine with great character and an aggressive exhaust note, especially at 6–7 k rpm autoexpress.co.uk.

• While powerful, it’s a sizeable and somewhat heavy four‑door, making tight cornering less nimble than smaller M‑cars .

🛋 Interior & Comfort

• Features high-end leather upholstery, carbon‑fiber accents, four‑zone climate, heated/ventilated “active” front seats, and Bang & Olufsen or optional Harman Kardon audio edmunds.com.

• Available Executive/Driver Assistance Packs add HUD, heated steering wheel, active seats, rear sunshades, and advanced safety tech edmunds.com+12edmunds.com+12pcarmarket.com+12.

• Seating for five with a sloping coupe-like roofline—rear headroom is adequate but legroom modest compared to larger sedans youtube.com+1caranddriver.com+1.

🚗 Practicality & Usability

• Trunk capacity around 12 cu ft—decent for a sporty four-door, though less than a traditional sedan .

• Equipped for daily use: soft‑close doors, active cruise systems, adaptive lighting—all wrapped in luxury touches .

🔧 Ownership & Reliability

• Owners characterize it as a rare gem—a “Sexy Beast” with impeccable build quality, low maintenance bother beyond routine servicing edmunds.com.

• The S63 engine lineage has known issues (like rod bearings), so thorough pre-purchase inspections and service history checks are wise