Mercedes-AMG SL 63 vs Ferrari 488 GTB
Compare the Mercedes-AMG SL 63 vs Ferrari 488 GTB. The Mercedes-AMG SL 63 is £45,000 cheaper. The Ferrari 488 GTB is 0.5s quicker to 60mph. The Mercedes-AMG SL 63 is more fuel efficient. Full performance, cost & ownership breakdown.
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 Ferrari 488 GTB is priced from £165,000, powered by a 3.9L Twin-Turbo V8, producing 661 hp, with 760 Nm of torque, reaching 0-60 mph in 3s, a top speed of 205 mph, sent to the road via rear-wheel drive.
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. The Ferrari 488 GTB offers a 230-litre boot, runs on petrol, returns around 22 mpg, is covered by a 3yr / unlimited mi warranty.
On cost of ownership, the Mercedes-AMG SL 63 is £45,000 cheaper than its rival, the Mercedes-AMG SL 63 costs less in annual maintenance (£1,500 versus £3,000), the Mercedes-AMG SL 63 is the more fuel-efficient choice, a full tank costs around £90 for the Mercedes-AMG SL 63 and £85 for the Ferrari 488 GTB.
Driving Character: Mercedes-AMG SL 63 vs Ferrari 488 GTB
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.
The Ferrari 488 GTB signals the move toward turbocharging, utilizing a 3.9L twin-turbo V8 to produce 661hp and a massive 760Nm of torque. The engine character is defined by its immense, flat torque curve, which makes it feel vastly more accessible and urgent in daily driving than its naturally aspirated predecessor. The side-slip control system is highly effective, enabling the driver to push the car into controlled oversteer with ease. While some enthusiasts lament the loss of the high-revving naturally aspirated top end, the gain in mid-range punch makes it a devastatingly fast grand tourer.
Head-to-head, the division is clear: the Ferrari 488 GTB takes our 0-100 driving character grading, 78 against 92. Characteristic of the Mercedes-AMG SL 63: Composed, quattro-like AWD grip with genuine open-top GT character. For the Ferrari 488 GTB: Blisteringly quick turbocharged V8 with sharp, communicative handling. In outright terms it is 577 hp against 661 — a 84 hp gap — and the Ferrari 488 GTB reaches 60 mph 0.5s sooner.
Interior & Cabin: Mercedes-AMG SL 63 vs Ferrari 488 GTB
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.
The cabin of the 488 GTB offers a more refined, luxurious feel compared to the 458, featuring high-quality materials and improved build standards throughout. Ergonomics are excellent, with all primary controls within easy reach of the driver. Visibility remains a strong point for a mid-engine car, with clear front sightlines that make it feel smaller than it actually is. However, the infotainment system is noticeably dated compared to current models, lacking the seamless connectivity and high-resolution displays expected of modern luxury cars. It is a functional and comfortable space that balances performance and refinement well.
Head-to-head, the division is clear: the Mercedes-AMG SL 63 takes our 0-100 interior & cabin grading, 85 against 76. Characteristic of the Mercedes-AMG SL 63: Luxurious, modern cabin with excellent build quality. For the Ferrari 488 GTB: Driver-focused cabin with strong build quality.
Daily Usability: Mercedes-AMG SL 63 vs Ferrari 488 GTB
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.
For daily driving, the 488 GTB is remarkably civilised, particularly when the manettino is set to the softer settings. The steering is light and responsive, making city navigation straightforward, and the 230L boot provides decent storage for two. On poorer, uneven road surfaces, the suspension can feel rather firm, potentially causing fatigue over longer journeys in Sport mode. However, when treated as a grand tourer, it performs its duties admirably, managing the stresses of modern roads with a composure that makes it a highly usable mid-engine supercar for both errands and longer trips.
Head-to-head, the division is clear: the Mercedes-AMG SL 63 takes our 0-100 daily usability grading, 68 against 58. Characteristic of the Mercedes-AMG SL 63: Comfortable, capable long-distance convertible for daily use. For the Ferrari 488 GTB: Usable as an occasional daily supercar. that means 213 litres of boot space against 230, and everyday running costs that favour the Mercedes-AMG SL 63 at the pumps.
Ownership: Mercedes-AMG SL 63 vs Ferrari 488 GTB
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.
The 488 GTB represents a strong choice for those entering the world of modern Ferrari ownership. Used market values remain stable, reflecting the car’s excellent build quality and performance legacy. The Ferrari dealer network provides comprehensive support, though the added complexity of the twin-turbo system does mean that maintenance intervals and costs are higher compared to earlier naturally aspirated models. Insurance and running costs are in line with expectations for a mid-engine exotic, but the overall ownership experience is rewarding, bolstered by the brand’s enduring reputation and widespread specialist support in the market.
Head-to-head, the division is clear: the Ferrari 488 GTB takes our 0-100 ownership grading, 68 against 76. Characteristic of the Mercedes-AMG SL 63: Backed by Mercedes-AMG's established reliability record. For the Ferrari 488 GTB: Strong reliability reputation among modern Ferraris. On the wallet the two diverge at £165,000 versus £165,000 — a £0 difference, with annual maintenance of £1,500 against £3,000.