Insurance Group: 50
MPG: 21.4
CO2: 308
0-62 Mph: 3.8 secs
BHP: 571 BHP
Range: 400 miles
PROS: An enormous engine that can reach 0-62mph in an incredible speed. The handling is good and the F1 style suspension means great control and stability.
CONS: The price is astronomical and the performance does not justify such expense.
The handling of the SLS Roadster is excellent (although the steering could be sharper) and the AMG is a hugely powerful machine with a lightening 0-62mph speed. The V8 comes F1 style suspension and traction and stability systems to keep it controlled, but the drive is very hard due to that firm suspension.
The V8 engine is 6208cc and uses super unleaded petrol with a fuel tank capacity of 85 litres. There is a seven-speed automatic gearbox, which provides smooth acceleration, although the changes can be a bit jerky at higher speeds.
The engine is fairly refined, but never silent, and although there is a tiny bit of wind noise at high speeds, the convertibles are incredibly quiet with metal roof up. The wind blocker means that there is limited noise with the roof down. The large tyres create minimal road noise.
The SLS AMG has a 563bhp engine delivering 479lb-ft of torque at 4750rpm and reaches 0-62mph in 3.8 seconds with a top speed of 197mph.
The interior of the SLS Roadster convertible is well-designed and high-quality, living up to the reputation of Mercedes-Benz as a stylish manufacturer.
The seat and steering wheel adjust comfortably and the dash is comprehensive with the Command system proving easy access to the equipment such as satellite navigation and stereo, although it is a bit more distracting than the BMW’s iDrive system. The seats are supportive and comfortable, but visibility is not great.
The SLS AMG comes with leather seats, power steering, cruise control, metallic paint, climate control, stability control, alloy wheels, Bluetooth, rear parking sensors, satellite navigation, MP3 connectivity and stereo as standard.
For fuel economy, the SLS Roadster convertible has a start/stop system, which allows for great efficiency and low CO2 emissions.
The SLS Roadster convertible comes with all the safety equipment you would expect in a high-quality car including driver, passenger and front side airbags, alarm and immobiliser as standard. It also has the stability control, Attention Assist system, which alerts tired drivers, the Pre-Safe anticipatory crash-protection system and a pop-up bonnet to protect pedestrians in the case of a collision.
The convertible also comes with an automatically released roll-over bar and the metal roof is much more secure than a fabric roof, as on other convertibles.
Mercedes-Benz has a great record in reliability and came 6th in the 2011 JD Power survey out of 28 other manufacturers.
The boot is a fair size offering 173 litres of space. The SLS Roadster convertible has plenty of room in the front for two passengers and there are loads of storage options in the convertible.
The running costs are high with the SLS Roadster convertibles despite the efficient engine stop/start system. The SLS AMG model costs £176,895 and has a combined economy of 21.4mpg and CO2 emissions of 308g/km.
The SLS Roadster AMG is hugely expensive and the running costs are sky high. The AMG has a huge engine and definitely lives up to the price tag, but the coupe offers a better driving experience. The interior of the cabin could be slicker for the price. Overall, the roadster is not a great argument for spending this amount of money.
The resale value on the SLS Roadster convertible is good and Mercedes-Benz promise good service and reliability as well, although servicing is expensive.
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