Porsche 718 Spyder RS vs BMW M8 Competition

Driving Character: Porsche 718 Spyder RS vs BMW M8 Competition

The Porsche 718 Spyder RS is defined by its mid-engine configuration and the installation of the 4.0L flat-six from the GT3. The chassis is a masterpiece of precision, featuring RS-specific suspension geometry that rewards technical accuracy. The steering feel is sharp and communicative, offering a visceral connection to the tarmac that few modern roadsters can replicate. While it is certainly capable on a track, the engine note and open-top architecture make it a raw experience on winding B-roads. The gearshifts are lightning fast, ensuring the powertrain remains at the heart of the driving sensation throughout every spirited corner.

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.

Head-to-head, the division is clear: the Porsche 718 Spyder RS takes our 0-100 driving character grading, 94 against 78. Characteristic of the Porsche 718 Spyder RS: GT4 RS power in an open-top body - visceral and track-honed. For the BMW M8 Competition: Effortless, high-speed GT pace with genuine back-road ability. In outright terms it is 493 hp against 617 — a 124 hp gap — and the BMW M8 Competition reaches 60 mph 0.4s sooner.

Interior & Cabin: Porsche 718 Spyder RS vs BMW M8 Competition

Inside, the Porsche 718 Spyder RS prioritises weight saving over luxury. The carbon fibre bucket seats provide immense support, while the use of fabric door pulls and minimal sound insulation highlights its motorsport heritage. Build quality is characteristically high, though the cabin environment is undeniably sparse compared to a standard 718. The infotainment system is functional rather than flashy, providing necessary data without distracting from the task of driving. Despite the lack of plush padding, the driver-focused ergonomics remain impeccable, creating a purposeful space that reflects the uncompromising nature of the vehicle’s design philosophy.

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.

Head-to-head, the division is clear: the BMW M8 Competition takes our 0-100 interior & cabin grading, 52 against 86. Characteristic of the Porsche 718 Spyder RS: Stripped-back, motorsport-focused cockpit. For the BMW M8 Competition: Luxurious, driver-focused cabin with excellent build quality.

Daily Usability: Porsche 718 Spyder RS vs BMW M8 Competition

Daily utility is clearly secondary to performance in the Porsche 718 Spyder RS, yet it remains surprisingly manageable. The inclusion of a nose lift system as standard allows for navigation over urban speed bumps and steep inclines without damaging the front splitter. Storage is adequate for a weekend getaway, with both a front boot and a rear luggage compartment available for essential items. Ingress and egress require some physical agility due to the low-slung bucket seats and side sills, but for owners who accept the compromise of a manual roof operation, it serves as a usable roadster.

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.

Head-to-head, the division is clear: the BMW M8 Competition takes our 0-100 daily usability grading, 38 against 70. Characteristic of the Porsche 718 Spyder RS: Usable but clearly built for spirited driving over commuting. For the BMW M8 Competition: Comfortable, capable long-distance GT for daily use. that means 125 litres of boot space against 420, plus a usable front boot in the Porsche 718 Spyder RS.

Ownership: Porsche 718 Spyder RS vs BMW M8 Competition

Ownership of the Porsche 718 Spyder RS is defined by its exclusivity and potential for appreciation. As a model with limited production, it sits in a secure position within the enthusiast market. While annual maintenance costs are high, the support provided by the Porsche Motorsport division offers peace of mind for specialized mechanical needs. Insurance premiums will be substantial, and the high purchase price requires careful consideration, but the prospect of long-term residual strength remains strong. For collectors and enthusiasts alike, it represents a peak of internal combustion performance within the Porsche stable.

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.

Head-to-head, the division is clear: the Porsche 718 Spyder RS takes our 0-100 ownership grading, 78 against 72. Characteristic of the Porsche 718 Spyder RS: Mechanically simple, Porsche-grade reliability. For the BMW M8 Competition: Backed by strong BMW reliability reputation. On the wallet the two diverge at £140,000 versus £135,000 — a £5,000 difference, with annual maintenance of £1,400 against £1,500, and warranty cover of 4yr / 50k mi versus 3yr / unlimited mi.

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