Audi R8 V10 vs Mercedes-AMG SL 63
Compare the Audi R8 V10 vs Mercedes-AMG SL 63. The Audi R8 V10 is £20,000 cheaper. The Audi R8 V10 is 0.4s quicker to 60mph. The Mercedes-AMG SL 63 is more fuel efficient. Full performance, cost & ownership breakdown.
The Audi R8 V10 is priced from £95,000, powered by a 5.2L V10, producing 602 hp, with 560 Nm of torque, reaching 0-60 mph in 3.1s, a top speed of 205 mph, sent to the road via all-wheel drive. The Mercedes-AMG SL 63 is priced from £165,000, powered by a 4.0L Twin-Turbo V8, producing 577 hp, with 800 Nm of torque, reaching 0-60 mph in 3.5s, a top speed of 196 mph, sent to the road via all-wheel drive.
The Audi R8 V10 offers a 226-litre boot, runs on petrol, returns around 19 mpg, is covered by a 3yr / unlimited mi warranty. The Mercedes-AMG SL 63 offers a 213-litre boot, runs on petrol, returns around 24 mpg, is covered by a 3yr / unlimited mi warranty.
On cost of ownership, the Audi R8 V10 is £20,000 cheaper than its rival, the Mercedes-AMG SL 63 costs less in annual maintenance (£1,800 versus £1,500), the Mercedes-AMG SL 63 is the more fuel-efficient choice, a full tank costs around £85 for the Audi R8 V10 and £90 for the Mercedes-AMG SL 63.
Driving Character: Audi R8 V10 vs Mercedes-AMG SL 63
The R8 V10 is an endangered species, powered by a naturally aspirated 5.2L engine that delivers a linear, spine-tingling power curve rarely seen in the era of forced induction. Its Quattro all-wheel-drive system provides immense confidence, ensuring that all 602 hp can be deployed effectively regardless of the conditions. While it may lack the tail-happy adjustability of some rear-wheel-drive competitors, its stability at the limit makes it incredibly fast and predictable on track. The steering is light but accurate, allowing the driver to thread this supercar through corners with surgical precision and immense, reliable ease.
The Mercedes-AMG SL 63 transitions the lineage toward a sophisticated grand tourer profile, prioritising compliance over the surgical precision of its predecessor. The 4.0-litre twin-turbo V8 delivers a relentless surge of torque, managed by an all-wheel-drive system that ensures composure in challenging UK conditions. While the AMG Active Ride Control suspension offers remarkable poise for a heavy convertible, the steering feel remains somewhat insulated compared to pure sports cars. It excels as a high-speed cruiser rather than a track-day weapon, favouring long-distance refinement and effortless pace over the frantic, razor-sharp feedback once associated with the AMG brand.
Head-to-head, the division is clear: the Audi R8 V10 takes our 0-100 driving character grading, 85 against 78. Characteristic of the Audi R8 V10: High-revving naturally-aspirated V10 with reassuring quattro grip. For the Mercedes-AMG SL 63: Composed, quattro-like AWD grip with genuine open-top GT character. In outright terms it is 602 hp against 577 — a 25 hp gap — and the Audi R8 V10 reaches 60 mph 0.4s sooner.
Interior & Cabin: Audi R8 V10 vs Mercedes-AMG SL 63
The cabin prioritises the driver above all else, featuring the innovative Virtual Cockpit which presents vital information without the need for a secondary centre screen. The overall layout is clean, minimalist, and constructed with materials that feel built to last, despite some shared Audi components. Ergonomics are near perfect, placing the gear shifters and driving mode controls exactly where the hands naturally fall. While it may not offer the ornate, bespoke design of some ultra-luxury rivals, it achieves a high level of functional elegance that feels both futuristic and fundamentally sound for a high-performance supercar.
Inside, the SL 63 feels thoroughly modern, dominated by a portrait-oriented MUX interface that dictates the cabin aesthetic. The digital cockpit is crisp, though the heavy reliance on touch-sensitive surfaces can feel counterintuitive when pressing on. Material quality is excellent, with high-grade leathers and metals, yet the ergonomics are compromised by the vestigial rear seats, which serve more as shelf space than viable seating. It lacks the intimate, driver-focused cocoon of the previous AMG GT, opting instead for a broad, open-air cockpit design that prioritises perceived luxury and connectivity over raw, tactile immersion.
Head-to-head, the division is clear: the Mercedes-AMG SL 63 takes our 0-100 interior & cabin grading, 78 against 85. Characteristic of the Audi R8 V10: Understated, high-quality Audi cabin, one of the easiest supercar interiors to live with. For the Mercedes-AMG SL 63: Luxurious, modern cabin with excellent build quality.
Daily Usability: Audi R8 V10 vs Mercedes-AMG SL 63
Daily use is surprisingly viable, thanks to the inherent stability of the AWD system, which makes it a capable machine even in inclement weather. The front trunk provides a modest 226L of space, which is enough for a weekend away if packed efficiently. Parking is relatively easy given its mid-engine proportions, although the low ride height and firm suspension can make traversing urban speed bumps a laborious task. It serves as an excellent dual-purpose vehicle, balancing its supercar performance with a level of refinement and reliability that most other machines in its class simply cannot match.
Daily utility is remarkably improved, largely due to the transition to a fully variable fabric roof that saves significant boot space and lowers the centre of gravity. The 213-litre capacity remains tight, though it accommodates soft luggage better than the old hard-top systems. Parking remains a chore; the wide, low-slung bodywork requires cautious navigation through tight urban gaps, and the extensive bonnet length demands foresight. Nevertheless, the sophisticated suspension tuning allows it to soak up poorly maintained road surfaces with grace, making it a viable, albeit thirsty, companion for regular motorway commutes and long-distance touring.
Head-to-head, the division is clear: the Audi R8 V10 takes our 0-100 daily usability grading, 72 against 68. Characteristic of the Audi R8 V10: Widely regarded as the most daily-usable supercar of its generation. For the Mercedes-AMG SL 63: Comfortable, capable long-distance convertible for daily use. that means 226 litres of boot space against 213, and everyday running costs that favour the Mercedes-AMG SL 63 at the pumps.
Ownership: Audi R8 V10 vs Mercedes-AMG SL 63
Owning an R8 is remarkably straightforward for a supercar, as it benefits from the vast Audi dealer network. Routine maintenance costs are a manageable £1,800 annually, which is highly competitive within this segment. Residual values have remained strong as the naturally aspirated V10 gains iconic status in the collector market. While the Quattro driveline does require periodic servicing, the R8 is generally considered a highly reliable piece of engineering. The combination of easy service access and legendary V10 performance makes it a favoured long-term investment for those who value both utility and emotional engagement.
Ownership is bolstered by the vast, well-integrated Mercedes-Benz dealer network, which provides consistent support for the complex AMG powertrain. Maintenance costs are steep, with annual services reflecting the performance-oriented nature of the twin-turbo V8, and the intricate soft-top mechanism introduces a long-term servicing variable that owners must anticipate. While depreciation is generally mitigated by the enduring prestige of the SL moniker, the market is competitive. Reliability is generally predictable, provided the rigid servicing intervals are respected, ensuring the complex electronics and drivetrain remain within optimal operating parameters throughout the ownership period.
Head-to-head, the division is clear: the Audi R8 V10 takes our 0-100 ownership grading, 80 against 68. Characteristic of the Audi R8 V10: Reputation as the most reliable, easiest-to-own supercar in its class. For the Mercedes-AMG SL 63: Backed by Mercedes-AMG's established reliability record. On the wallet the two diverge at £95,000 versus £165,000 — a £70,000 difference, with annual maintenance of £1,800 against £1,500.