2009 Audi R8 vs. 2006 Mercedes-Benz SL
To start off, 2009 Audi R8 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2006 Mercedes-Benz SL would be higher. At 5,506 cc (12 cylinders), 2006 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2009 Audi R8 (518 HP @ 8000 RPM) has 25 more horse power than 2006 Mercedes-Benz SL. (493 HP @ 5000 RPM). In normal driving conditions, 2009 Audi R8 should accelerate faster than 2006 Mercedes-Benz SL. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercedes-Benz SL weights approximately 115 kg more than 2009 Audi R8.
Because 2009 Audi R8 is all wheel drive (AWD), it will have significant more traction and grip than 2006 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2009 Audi R8 will offer significantly more control. 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, 2006 Mercedes-Benz SL (800 Nm @ 1800 RPM) has 270 more torque (in Nm) than 2009 Audi R8. (530 Nm @ 6500 RPM). This means 2006 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi R8. 2006 Mercedes-Benz SL has automatic transmission and 2009 Audi R8 has manual transmission. 2009 Audi R8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi R8 | 2006 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | R8 | SL |
| Year Released | 2009 | 2006 |
| Body Type | Coupe | Convertible |
| Engine Position | Middle | Front |
| Engine Size | 5204 cc | 5506 cc |
| Engine Cylinders | 10 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 518 HP | 493 HP |
| Engine RPM | 8000 RPM | 5000 RPM |
| Torque | 530 Nm | 800 Nm |
| Torque RPM | 6500 RPM | 1800 RPM |
| Engine Compression Ratio | 12.5:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 3.9 seconds | 5.1 seconds |
| Drive Type | AWD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1580 kg | 1695 kg |
| Vehicle Length | 4440 mm | 4540 mm |
| Vehicle Width | 1940 mm | 1820 mm |
| Vehicle Height | 1260 mm | 1300 mm |
| Wheelbase Size | 2660 mm | 2570 mm |
| Fuel Consumption | 12.4 L/100km | 12.4 L/100km |
| Fuel Consumption City | 19.6 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 14.7 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 75 L | 80 L |
