Mercedes SLS AMG Roadster: 563 HP V8 Open-Top Review

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The Mercedes SLS AMG Roadster stands as a pinnacle of engineering, delivering a naturally aspirated 6.2-liter V8 engine that produces 563 horsepower and 479 lb-ft of torque, propelling it from 0-60 mph in approximately 3.8 seconds with a top speed electronically limited to 197 mph. This convertible version trades the coupe’s signature gullwing doors for conventional ones, yet retains the core dynamics that make the SLS a thrilling drive, now enhanced by the freedom of open-air motoring.

Powertrain Excellence: The Heart of the Beast

At the core of the SLS AMG Roadster lies its hand-built 6.2-liter V8, a masterpiece from AMG that revs to 7,000 rpm with a visceral roar. Reviewers consistently praise its thunderous soundtrack, which fills the cabin unimpeded when the fabric roof is stowed, turning every acceleration into a symphony of growls and barks. The engine’s naturally aspirated nature provides linear power delivery without turbo lag, making it responsive from low revs and explosive at higher ones.

Paired with a seven-speed dual-clutch transmission mounted at the rear for optimal weight distribution, gear changes are swift, especially in Sport Plus mode. Paddle shifters respond instantly to inputs, though some note a slight delay in manual downshifts compared to upshifts. Launch control enables explosive starts, matching the coupe’s 3.5-second 0-60 capability once tires grip, with the system’s torque management preventing excessive wheelspin.

Performance SpecsDetails
Engine6.2L V8, 563 hp @ 6,800 rpm
Torque479 lb-ft @ 4,750 rpm
0-60 mph~3.8 seconds
Top Speed197 mph (limited)
Transmission7-speed dual-clutch auto

Chassis and Handling: Precision Meets Playfulness

Despite shedding the fixed roof, the Roadster’s chassis remains remarkably stiff, exhibiting minimal flex even on demanding roads. The front-mid engine layout—positioned behind the front axle—delivers sharp turn-in and balanced handling, with the rear wheels providing constant feedback on grip levels. Optional adaptive dampers offer three settings: Comfort for daily cruising, Sport for spirited drives, and Sport Plus for track-like responsiveness.

Handling is predictable yet engaging; the car dives eagerly into corners, with understeer rare and the rear end lively without being unruly. ESP in Sport mode allows controlled slides up to 90 degrees before intervening, rewarding skilled drivers with tail-out fun. Michelin Pilot Super Sport tires contribute to phenomenal grip, while massive brakes—often ceramic options—haul the car down with confidence-inspiring force.

  • Sharp steering: Quick ratio provides precise control, ideal for winding roads.
  • Balanced weight distribution: 47/53 front/rear aids agility.
  • Low roll: Roof deletion may lower the roll center, enhancing cornering poise.

Convertible Experience: Wind in the Hair, Engine in Your Ears

The power-operated fabric roof deploys or stows in 11 seconds at speeds up to 31 mph, transforming the SLS into an open-top cruiser without compromising structural integrity. With the top down, the V8’s exhaust notes become a highlight, booming at idle and escalating to a addictive crescendo under throttle, though some find the low-speed rumble intrusive.

Cabin space feels generous compared to the gullwing coupe, with ample headroom and easy entry via conventional doors—no ducking required. Trunk space holds steady at six cubic feet top-down, sufficient for weekend getaways. The interior boasts premium leather, aluminum accents, and thick carpeting, blending luxury with a purposeful cockpit layout.

Daily Drivability: Supercar for the Real World

Unlike many supercars, the SLS Roadster excels in usability. Visibility is decent, the nose avoids scraping, and the transmission mimics a smooth torque-converter auto in comfort mode, complete with idle creep. Ride quality in Comfort mode absorbs most imperfections, though poor roads can send jarring shocks through the suspension.

Highway cruising at 80 mph is serene, with minimal drone or vibration, earning praise for ‘effortless speed.’ Fuel economy hovers around 21 mpg combined, respectable for its power. It’s a car you’d happily use for commutes or errands, blending raw performance with civility.

Design and Presence: Timeless Gullwing Spirit

Though lacking gullwing doors, the Roadster’s long hood, wide stance, and sleek lines evoke classic speedsters. Parked by a yacht or vineyard, it draws admiring glances. The fabric roof maintains a clean profile when raised, and 20-inch alloys wrapped in super sport tires complete the aggressive aesthetic.

Potential Drawbacks: Not Without Flaws

No car is perfect. The chassis, while stiff, struggles on disintegrating surfaces, transmitting harsh impacts. The dual-clutch can feel lazy on downshifts, and the steering lacks the progressive weight-up some prefer, feeling light at the limit. At over $200,000 new, it’s a premium proposition, though its character justifies the cost for enthusiasts.

Comparisons: How It Stacks Up

AspectSLS RoadsterFerrari 458 SpiderPorsche 911 Turbo Cabriolet
Power DeliveryLinear NA V8 roarTurbo V8 surgeAWD turbo punch
HandlingRWD playfulMid-engine neutralAWD planted
UsabilityHighly livableTrack-focusedEveryday champ
SoundThunderousScreamyRefined

The SLS offers a unique blend: less theatrical than Ferrari, more approachable than Porsche extremes, with old-school V8 charm.

Ownership Verdict: Worth the Pursuit?

For those seeking a supercar that’s as enjoyable on Alpine foothills as city streets, the SLS AMG Roadster delivers unmatched drama. Its V8 symphony, sharp dynamics, and convertible joy make it a modern classic. While not flawless, its engaging personality captivates, proving Mercedes could build a true driver’s car.

Frequently Asked Questions (FAQs)

Is the SLS AMG Roadster faster than the coupe?

No significant difference; both share the same powertrain and achieve similar 0-60 times around 3.5-3.8 seconds.

How does the roof operation work?

Electric fabric roof folds in 11 seconds up to 31 mph, maintaining trunk space.

What’s the fuel economy like?

Expect around 21 mpg combined, solid for a 563 hp V8.

Does it have adaptive suspension?

Optional AMG Ride Control with Comfort, Sport, and Sport Plus modes.

Is it comfortable for daily driving?

Yes, with smooth auto mode and compliant ride, though rough roads challenge it.

References

  1. 2012 Mercedes-Benz SLS AMG Roadster – First Drive Review — Car and Driver. 2011-10-01. https://www.caranddriver.com/reviews/a15122219/2012-mercedes-benz-sls-amg-roadster-first-drive-review/
  2. The Mercedes SLS AMG Roadster Was The Most Disappointing Performance Car I’ve Driven — CarThrottle. 2020-01-15. https://www.carthrottle.com/news/mercedes-sls-amg-roadster-was-most-disappointing-performance-car-ive-driven
  3. First Drive: Mercedes-Benz SLS AMG Roadster — Car Enthusiast. 2012-01-01. https://www.carenthusiast.com/reviews/article/6386/-/2012-Mercedes-Benz-SLS+AMG+Roadster/First+drive.html
  4. Driven Mercedes SLS AMG Roadster — Evo. 2012-01-01. https://www.evo.co.uk/mercedes/sls/7054/driven-mercedes-sls-amg-roadster
  5. Retro review: Mercedes-Benz SLS AMG Roadster — Top Gear. 2013-01-01. https://www.topgear.com/car-reviews/mercedes-benz/sls-63-2dr-auto/first-drive-1
  6. 2013 Mercedes-Benz SLS AMG GT Roadster review notes — Autoweek. 2013-01-01. https://www.autoweek.com/drives/a1943611/2013-mercedes-benz-sls-amg-gt-roadster-review-notes/
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