BMW M8 Gran Coupe vs AMG GT 63 S: Power, Design, and Performance Showdown
Luxury grand tourers represent the pinnacle of driving pleasure, blending raw power with refined elegance. The BMW M8 Gran Coupe and AMG GT 63 S stand at the forefront of this elite segment, each delivering a unique blend of performance, design, and exclusivity. Understanding their differences helps enthusiasts choose the ideal machine for their aspirations on open roads and winding trails.
Power and Performance Capabilities
Both vehicles are engineered for extreme performance, but their approaches differ significantly. The BMW M8 Gran Coupe delivers a twin-turbocharged 4.4-liter B58 engine producing 617 horsepower, paired with a 8-speed ZF automatic and rear-wheel drive. This setup offers effortless acceleration, hitting 0–60 mph in just 3.2 seconds. In contrast, the AMG GT 63 S features a twin-turbo 4.0-liter M178 V8 generating 630 horsepower and 664 lb-ft of torque. With a 7-speed dual-clutch transmission and rear-wheel drive, it achieves a blistering 0–60 mph in 3.2 seconds too—mirroring the M8’s pace but with a sharper, more responsive throttle response favored by purists.
Design Philosophy and Exterior Styling
Design plays a crucial role in defining each car’s identity. The BMW M8 Gran Coupe reimagines the classic coupe silhouette with a sleek, aerodynamic profile—featuring a sloping roofline, sculpted headlights, and a signature grille with integrated air intakes. Its low drag coefficient and balanced proportions emphasize timeless luxury and approachability. The AMG GT 63 S, however, embraces a more aggressive, dynamic stance with aggressive air dams, wide rear wings, and a wide track width. Its bold LED lighting and AMG-specific badging project raw performance and exclusivity, creating a visually assertive presence that’s unmistakably sport-luxury.
Driving Experience and Comfort
While both offer exhilarating dynamics, their driving characteristics diverge to suit different preferences. The M8 Gran Coupe delivers a supremely comfortable ride, thanks to adaptive air suspension and a refined interior with high-quality materials and intuitive tech—ideal for long journeys without sacrificing performance. The AMG GT 63 S prioritizes driver engagement, offering a sport-tuned chassis with precise handling, rear-wheel steering, and paddled shifts, making it a pure driver’s car. Inside, AMG’s focus on tactile feedback and minimalist luxury enhances immersion, though comfort leans sportier—less suited for extended cruising than the M8’s relaxed grand tourer comfort.
The BMW M8 Gran Coupe and AMG GT 63 S represent two masterful approaches to the luxury grand tourer segment: one marrying everyday elegance with blistering power, the other delivering uncompromising performance wrapped in bold design. The M8 excels in comfort and accessibility, perfect for those seeking refined power, while the AMG GT 63 S thrills with sharper dynamics and aggressive styling, appealing to enthusiasts craving pure driving passion. Ultimately, the choice hinges on whether you prioritize serene performance or unrelenting sportiness—both cars redefine what a grand tourer can be.
Compare performance of BMW M8 Gran Coupe Competition (F93) and Mercedes-Benz AMG GT 63 S (X290). Updated January 2026. Compare MSRP, invoice pricing, and other features on the 2025 BMW M8 Gran Coupe and 2025 Mercedes.
How do the BMW M8 Competition and Mercedes-Benz AMG GT 63 S compare? Use our comparison tool to see over 140 data points, including price, trims, reliability ratings, mpg, rankings, horsepower, depreciation, and standard and optional equipment. Compare performance of Mercedes-Benz AMG GT 63 S (X290) and BMW M8 Competition (G15). Updated January 2026.
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The new Mercedes-AMG GT 63 goes up against its German rival, the BMW M8 Competition, in our latest comparison test. The AMG GT is back with a new all-wheel-drive powertrain, but still has striking. The GT 63 S manages this in 17.55.
BMW owners can, however, take solace in the fact that the two cars very close, as well as the fact that the Bimmer is considerably cheaper by over 10 grand. The BMW M8 Competition & Mercedes AMG GT 4-Door Coupe are awesome 4-door, high performance cars. Both of these vehicles also have luxurious interiors and gre.
Find out who will win a drag race (from a standing start or rolling start) between a Mercedes AMG GT Coupé 63 S 4Matic+ 639 PS and a BMW M8 Gran Coupé Competition xDrive 625 PS. The BMW M8 is available in 4395 cc engine with 1 fuel type options: Petrol and Mercedes-Benz AMG GT 63 S 4Matic Plus is available in 3982 cc engine with 1 fuel type options: Petrol.