BMW M8 Competition vs Mercedes-AMG GT
Compare the BMW M8 Competition vs Mercedes-AMG GT. The BMW M8 Competition is £20,000 cheaper. The BMW M8 Competition is 0.1s quicker to 60mph. The BMW M8 Competition is more fuel efficient. Full performance, cost & ownership breakdown.
The BMW M8 Competition is priced from £135,000, powered by a 4.4L Twin-Turbo V8, producing 617 hp, with 750 Nm of torque, reaching 0-60 mph in 3s, a top speed of 190 mph, sent to the road via all-wheel drive. The Mercedes-AMG GT is priced from £155,000, powered by a 4.0L Twin-Turbo V8, producing 577 hp, with 800 Nm of torque, reaching 0-60 mph in 3.1s, a top speed of 197 mph, sent to the road via rear-wheel drive.
The BMW M8 Competition offers a 420-litre boot, runs on petrol, returns around 23 mpg, is covered by a 3yr / unlimited mi warranty. The Mercedes-AMG GT offers a 350-litre boot, runs on petrol, returns around 22 mpg, is covered by a 3yr / unlimited mi warranty.
On cost of ownership, the BMW M8 Competition is £20,000 cheaper than its rival, the BMW M8 Competition costs less in annual maintenance (£1,500 versus £1,600), the BMW M8 Competition is the more fuel-efficient choice, a full tank costs around £85 for the BMW M8 Competition and £85 for the Mercedes-AMG GT.
Driving Character: BMW M8 Competition vs Mercedes-AMG GT
The BMW M8 Competition defines the modern grand tourer, blending brutal 617hp twin-turbocharged V8 performance with a sophisticated M xDrive all-wheel-drive system. While it possesses the pace to dismantle almost any supercar, its 4,395lb mass remains a constant consideration, particularly through tighter, technical sequences where it lacks the nimble precision of a lighter M4. The adjustable rear-biased drivetrain allows for playful rotation, yet the chassis is primarily tuned for crushing vast distances with absolute composure. It is a formidable machine that prioritises stability and immense, exploitable torque over raw, stripped-back track feedback, representing the ultimate high-speed cruiser in the current M portfolio.
The Mercedes-AMG GT demonstrates the prowess of a front-mid engine layout, prioritising balance and direct feedback for the enthusiast driver. With 577hp directed to the rear wheels via a mechanical limited-slip differential, the car offers a visceral, involving experience. Steering is sharp and communicative, allowing for precise placement in corner apexes, though the rear-wheel-drive platform demands respect in damp conditions. Acceleration is blistering, with a 3.1-second 0-60mph sprint. While less forgiving than its AWD competitors, the AMG GT rewards committed driving with a dynamic repertoire that remains a benchmark for pure driver engagement within the contemporary supercar class.
Head-to-head, the division is clear: the Mercedes-AMG GT takes our 0-100 driving character grading, 78 against 82. Characteristic of the BMW M8 Competition: Effortless, high-speed GT pace with genuine back-road ability. For the Mercedes-AMG GT: Thunderous AMG V8 with a more usable, GT-focused character than before. In outright terms it is 617 hp against 577 — a 40 hp gap — and the BMW M8 Competition reaches 60 mph 0.1s sooner.
Interior & Cabin: BMW M8 Competition vs Mercedes-AMG GT
Stepping into the M8 Competition reveals a cabin dripping in premium Merino leather and intricate carbon fibre detailing, confirming its status as a pinnacle M product. The ergonomics are quintessential BMW, featuring an intuitive, M-specific digital interface that provides all critical telemetry without overwhelming the driver. While the materials and build quality are exemplary, the two-door layout compromises access, and the rear quarters remain strictly occasional seats despite the car's generous overall proportions. It strikes a successful balance between a focused, driver-centric cockpit and the luxurious, refined ambiance expected of a high-end grand tourer, successfully isolating occupants from the road's harsher realities.
Inside, the AMG GT presents a cockpit-like environment dominated by a high transmission tunnel and a wide, driver-centric dashboard. The interior materials are of a high standard, showcasing bespoke AMG instruments and Alcantara detailing. Space is deliberately intimate, reflecting the car’s focused nature rather than grand touring comfort. Visibility is somewhat compromised by the low-slung roofline and thick pillars, yet the driving position is perfectly aligned with the pedals and steering wheel. It is an environment designed to insulate the driver from distractions, keeping the focus squarely on the task of piloting a high-performance machine through demanding roads.
Head-to-head, the division is clear: the BMW M8 Competition takes our 0-100 interior & cabin grading, 86 against 84. Characteristic of the BMW M8 Competition: Luxurious, driver-focused cabin with excellent build quality. For the Mercedes-AMG GT: Genuinely usable 2+2 cabin with strong build quality.
Daily Usability: BMW M8 Competition vs Mercedes-AMG GT
Despite its status as a performance powerhouse, the M8 Competition remains surprisingly liveable for daily duties. The 440-litre boot provides sufficient volume for weekend escapes, though the long doors and low seating position can hinder easy egress in tight urban car parks. Comfort mode successfully softens the adaptive suspension, making motorway slogs relatively effortless, while the all-wheel-drive system ensures the car remains secure in varied UK weather conditions. Its sheer width, however, requires constant vigilance in narrow city streets, as the low-profile rubber and stiff structural setup demand care when traversing speed bumps or uneven urban asphalt.
Usability in the AMG GT is naturally restricted by its performance-oriented design. The front trunk provides a 260-litre storage area, adequate for light travel but far from comprehensive for extended road trips. The suspension is remarkably firm even in Comfort mode, which can result in an unsettled ride on poor surfaces or urban speed bumps. Ingress and egress require a degree of physical dexterity, given the low ride height and sculpted seats. While the car can manage city errands, its primary habitat remains the open road where its performance credentials can be exercised without the constraints of suburban infrastructure.
Head-to-head, the division is clear: the Mercedes-AMG GT takes our 0-100 daily usability grading, 70 against 72. Characteristic of the BMW M8 Competition: Comfortable, capable long-distance GT for daily use. For the Mercedes-AMG GT: More practical than the previous 2-seat GT thanks to rear seats. that means 420 litres of boot space against 350, and everyday running costs that favour the BMW M8 Competition at the pumps.
Ownership: BMW M8 Competition vs Mercedes-AMG GT
Ownership of an M8 Competition is an exercise in managing significant operating costs, commensurate with its supercar-killing performance. The BMW dealer network offers comprehensive support, but prospective buyers should factor in the substantial expenses associated with premium tyres and high-performance brake components, which wear rapidly under enthusiastic use. While residuals have stabilised, the market for such a specific, high-output V8 GT remains relatively narrow. Annual maintenance costs are predictably high, though the car benefits from a robust community and global parts availability, ensuring that the heavy financial commitment yields a reliably formidable and well-documented performance machine.
Owning an AMG GT is an investment in the traditional, high-performance V8 heritage of the brand. Residual values remain strong, bolstered by consistent demand from enthusiasts who prize the V8 character. Servicing is handled through the robust Mercedes dealer network, ensuring that specialists are always within reach, though owners must prepare for high costs associated with performance-grade brakes and tyres. Annual maintenance of £1,600 is standard for the class. Insurance costs reflect the car’s high performance and the complexity of its mechanical components, yet the model remains a prized inclusion in the garages of those who value pure engagement.
Head-to-head, the division is clear: the BMW M8 Competition takes our 0-100 ownership grading, 72 against 68. Characteristic of the BMW M8 Competition: Backed by strong BMW reliability reputation. For the Mercedes-AMG GT: Backed by Mercedes-AMG's established V8 reliability record. On the wallet the two diverge at £135,000 versus £155,000 — a £20,000 difference, with annual maintenance of £1,500 against £1,600.