The BMW M6 Convertible stands as a pinnacle of grand touring excellence, fusing ferocious acceleration with everyday usability. This open-top powerhouse, powered by a twin-turbo V8, delivers 560 horsepower while offering surprising refinement for long-distance drives. Weighing around 4,500 pounds, it defies its mass with sharp handling and a plush ride, making it ideal for both spirited canyon runs and relaxed coastal cruises.
Engine and Performance: Turbocharged Dominance
At the heart of the M6 Convertible lies the S63 twin-turbocharged 4.4-liter V8 engine, producing 560 hp and 501 lb-ft of torque. Maximum pull arrives early at 1,500 rpm, enabling effortless surges from low speeds, with the engine revving to over 7,000 rpm. Twin-scroll turbochargers minimize lag through zero-interference gas pulses and a cross-bank exhaust manifold, ensuring razor-sharp throttle response and 30% better efficiency than its V10 predecessor.
Paired with a seven-speed dual-clutch transmission (M-DCT), shifts are nearly imperceptible at highway speeds, though slightly clunky in traffic. Launch control propels the car to 60 mph in 4.0 seconds, with a quarter-mile in 12.4 seconds. Fuel economy rates at 14 mpg city, 20 mpg highway, and about 16 mpg combined, aided by auto stop-start and a larger metal fuel tank boosting range by 36%.
| Performance Metric | Value |
|---|---|
| 0-60 mph | 4.0 seconds |
| Quarter-Mile | 12.4 seconds |
| Top Speed (Limited) | 155 mph (optional 190 mph) |
| Skidpad Grip | 0.92 g |
| Curb Weight | 4,509-4,515 lbs |
This setup transforms the M6 into a dual-personality machine: a docile commuter sipping respectable mpg on highways or a beast unleashing neck-snapping downshifts.
Chassis and Handling: Surprisingly Agile for Its Size
Despite its 193-inch length and hefty curb weight, the M6 Convertible handles with poise thanks to innovative engineering. BMW M engineers bolted the rear subframe directly to the chassis, enhancing rigidity and precision—first seen on non-limited M cars like the M5. Adaptive dampers offer three settings, from plush for long hauls to firm for track duty, absorbing potholes better than stiffer M models like the M3.
Steering provides genuine feedback, weighting up in corners with kickback from mid-turn bumps, setting it apart from numb rivals. It grips at 0.92 g on the skidpad and feels quicker than expected in twists, though its GT roots prioritize stability over razor-sharpness. The convertible top, while adding flex, doesn’t ruin dynamics, and highway composure makes 80 mph feel like 60.
- Comfort Mode: Softest suspension for extended trips, isolating big impacts.
- Sport Mode: Balanced for daily driving with sharper responses.
- Track Mode: Maximum stiffness for aggressive cornering.
Interior Luxury: Premium Craftsmanship Redefined
The cabin exudes sophistication with high-grade leather, carbon fiber accents, and metallic trim. Reviewers praise it as surpassing Audi’s finest in design and materials, a rare feat for BMW. M-specific touches include a driving dynamics display, head-up display (HUD), and dual M buttons on the steering wheel for instant mode switches.
Customization abounds: damper stiffness, steering effort, engine response, and DCT logic adjustable in three ways. Options like Bang & Olufsen audio, navigation, and executive packages elevate comfort. Rear seats accommodate adults for short jaunts, though space is tight. The fabric roof retracts in 20 seconds at speeds up to 31 mph, revealing a cockpit alive with engine drama.
Design and Practicality: Muscular Yet Refined
Shedding the prior model’s lumpiness, the M6 boasts muscular creases and a sleeker profile. The convertible top preserves elegant lines better in coupe form, but open-air motoring amplifies the V8’s roar. Multi-layer insulation keeps wind noise low at triple-digit speeds.
Practicality shines with a larger tank for extended range and efficiency gains. It’s a true GT: comfy for cross-country blasts, quick for on-ramps, and versatile from cruiser to sprinter.
Driving Experience: GT Heart with M Soul
Owners and testers rave about its split personality. It devours highways silently, hits high speeds alarmingly fast, and corners with wit belying its weight. The engine’s presence dominates sans roof, every turbo spool and shift palpable. Scores reach 9.5/10 for grand touring prowess.
Drawbacks? Traction from stops challenges the rear wheels, and the top subtly alters aerodynamics. Still, it’s more livable than pure sports cars.
Technology and Driver Aids
M Drive buttons simplify tweaks: one for efficiency, another for max performance. DSC stability, HUD, and launch control enhance safety and fun. The DCT excels in auto mode, with paddles for manual control.
Competitors Comparison
| Model | Horsepower | 0-60 mph | Weight (lbs) | Best For |
|---|---|---|---|---|
| BMW M6 Convertible | 560 | 4.0s | 4,510 | GT Comfort |
| Audi RS7 | 560 | 3.5s | 4,800 | All-Weather |
| Mercedes-AMG SL63 | 577 | 3.8s | 4,400 | Luxury Focus |
| Porsche 911 Cabriolet | 443 | 4.1s | 3,500 | Track Purity |
The M6 edges in balanced usability.
Ownership Considerations
Expect premium maintenance for the twin-turbo V8 and DCT. Fuel costs add up, but efficiency surprises. Resale holds strong among enthusiasts.
Frequently Asked Questions (FAQs)
Is the BMW M6 Convertible reliable?
With proper maintenance, it’s durable, though turbo engines demand quality oil changes.
How does the roof operate?
Electrically in 20 seconds up to 31 mph, with excellent noise isolation.
What’s the fuel range?
Improved 36% over prior models, around 400-450 miles per tank.
Manual transmission available?
No for U.S. convertible; DCT standard.
Best driving modes?
Comfort for highways, Sport+ for thrills.
References
- BimmerFile Review: The New BMW M6 Convertible — BimmerFile. 2012-05-23. https://www.bimmerfile.com/2012/05/23/bimmerfile-review-the-new-m6-convertible/
- Test Driven: 2014 BMW M6 Convertible — Mind Over Motor. 2013-08-16. https://mindovermotor.com/2013/08/16/test-driven-2014-bmw-m6-convertible/
- 2016 BMW M6 Convertible Review: Powerful, Not Bright — Autoweek. 2016. https://www.autoweek.com/drives/a1879596/2016-bmw-m6-convertible-review-powerful-not-bright/
- 2012 BMW M6 Convertible Test Review — Car and Driver. 2012. https://www.caranddriver.com/reviews/a15120146/2012-bmw-m6-convertible-test-review/
- BIMMERPOST First Drive: 2012 BMW M6 Convertible (F12) Review — BIMMERPOST. 2012. https://www.6post.com/forums/showthread.php?t=695346

