Comparison Mercedes-Benz SLS AMG Roadster (R197) 6.2 (571 Hp) DCT & Mercedes-Benz R-class (W251) Long R 280 V6 (231 Hp) G-TRONIC
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| Brand: | Mercedes-Benz | Mercedes-Benz |
| Model: | SLS AMG | R-class |
| Generation: | SLS AMG Roadster (R197) | R-class (W251) Long |
| Engine / modification: | 6.2 (571 Hp) DCT | R 280 V6 (231 Hp) G-TRONIC |
| Production start: | 2011 year | 2007 year |
| Production end: | 2013 year | 2009 year |
| Coupe type: | Cabriolet | Combi |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 2 | 5 |
| Fuel consumption / economy - urban: | 19.9 l/100 km | |
| Fuel consumption / economy - extra urban: | 9.3 l/100 km | |
| Fuel consumption / economy - combined: | 13.2 l/100 km | 10.9 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.36 | |
| Fuel tank volume: | 85 l | 80 l |
| Emission standard: | Euro 5 | EURO V |
| CO2 emissions: | 308 g/km | 260 g/km |
| Power: | 571 hp | 231 hp |
| Max power in: | 6800 rpm. | 6000 rpm. |
| Maximum speed: | 317 km/h | 222 km/h |
| Acceleration from 0 to 100 km/h: | 3.8 sec | 9.7 sec |
| Torque: | 650 Nm @ 4750 rpm. | 300 Nm @ 2500-5000 rpm. |
| Model Engine: | M 159.980 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 6208 cm3 | 2996 cm3 |
| Engine oil capacity: | 9.5 l | |
| Coolant: | 14 l | |
| Fuel System: | Multi-point injection | Multi-point injection |
| Position of cylinders: | V engine | V engine |
| Valvetrain: | DOHC | |
| Number of cylinders: | 8 | 6 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 11.3 | 11.3 |
| Piston Stroke: | 94.6 mm | |
| Cylinder Bore: | 102.2 mm | |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 7 DCT | 7G-TRONIC |
| Length: | 4638 mm | 5157 mm |
| Width: | 1939 mm | 1922 mm |
| Width including mirrors: | 2075 mm | |
| Height: | 1261 mm | 1674 mm |
| Wheelbase: | 2680 mm | 3215 mm |
| Front track: | 1682 mm | 1661 mm |
| Rear (Back) track: | 1653 mm | 1651 mm |
| Minimum volume of Luggage (trunk): | 173 l | |
| Maximum amount of Luggage (trunk): | 2385 l | |
| Front suspension: | Double wishbone | |
| Rear suspension: | Independent, spring multi-link with stabilizer | |
| Max weight: | 1960 kg | 2810 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 1660 kg | 2175 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 11.9 m | 12.4 m |
| Permitted trailer load with brakes (12%): | 2100 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Tire size: | 265/35 ZR19; 295/30 ZR20 | 255/55 R18 |
| Wheel rims size: | R19; R20 | R18 |