2008 Mercedes-Benz SL 55 AMG Roadster vs. 2008 Mercedes-Benz SL 65 AMG
To start off, both 2008 Mercedes-Benz SL 55 AMG Roadster and 2008 Mercedes-Benz SL 65 AMG were released in the same year (2008). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,980 cc (12 cylinders), 2008 Mercedes-Benz SL 65 AMG is equipped with a bigger engine. In terms of performance, 2008 Mercedes-Benz SL 65 AMG (604 HP @ 4800 RPM) has 94 more horse power than 2008 Mercedes-Benz SL 55 AMG Roadster. (510 HP @ 6100 RPM) In normal driving conditions, 2008 Mercedes-Benz SL 65 AMG should accelerate faster than 2008 Mercedes-Benz SL 55 AMG Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz SL 65 AMG weights approximately 165 kg more than 2008 Mercedes-Benz SL 55 AMG Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2008 Mercedes-Benz SL 65 AMG (1,000 Nm @ 2000 RPM) has 280 more torque (in Nm) than 2008 Mercedes-Benz SL 55 AMG Roadster. (720 Nm @ 2600 RPM). This means 2008 Mercedes-Benz SL 65 AMG will have an easier job in driving up hills or pulling heavy equipment than 2008 Mercedes-Benz SL 55 AMG Roadster.
Compare all specifications:
| 2008 Mercedes-Benz SL 55 AMG Roadster | 2008 Mercedes-Benz SL 65 AMG | |
| Make | Mercedes-Benz | Mercedes-Benz |
| Model | SL | SL |
| Year Released | 2008 | 2008 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5439 cc | 5980 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 3 valves |
| Horse Power | 510 HP | 604 HP |
| Engine RPM | 6100 RPM | 4800 RPM |
| Torque | 720 Nm | 1000 Nm |
| Torque RPM | 2600 RPM | 2000 RPM |
| Engine Bore Size | 97 mm | 82.6 mm |
| Engine Stroke Size | 92 mm | 93 mm |
| Engine Compression Ratio | 9.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 4.2 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1955 kg | 2120 kg |
| Vehicle Length | 4540 mm | 4540 mm |
| Vehicle Width | 1820 mm | 1830 mm |
| Vehicle Height | 1300 mm | 1300 mm |
| Wheelbase Size | 2570 mm | 2570 mm |
| Fuel Consumption | 11.9 L/100km | 12.4 L/100km |
| Fuel Consumption City | 17 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 14.6 L/100km | 15.1 L/100km |
| Fuel Tank Capacity | 80 L | 80 L |
