2007 Audi S8 vs. 2008 Mercedes-Benz R
To start off, 2008 Mercedes-Benz R is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Audi S8. In addition, the cost of maintenance, including insurance, on 2007 Audi S8 would be higher. At 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (444 HP @ 7000 RPM) has 223 more horse power than 2008 Mercedes-Benz R. (221 HP @ 3800 RPM). In normal driving conditions, 2007 Audi S8 should accelerate faster than 2008 Mercedes-Benz R. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz R weights approximately 355 kg more than 2007 Audi S8.
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, 2007 Audi S8 (540 Nm @ 3500 RPM) has 30 more torque (in Nm) than 2008 Mercedes-Benz R. (510 Nm @ 1600 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Mercedes-Benz R.
Compare all specifications:
| 2007 Audi S8 | 2008 Mercedes-Benz R | |
| Make | Audi | Mercedes-Benz |
| Model | S8 | R |
| Year Released | 2007 | 2008 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2987 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 221 HP |
| Engine RPM | 7000 RPM | 3800 RPM |
| Torque | 540 Nm | 510 Nm |
| Torque RPM | 3500 RPM | 1600 RPM |
| Engine Bore Size | 84.5 mm | 83 mm |
| Engine Stroke Size | 92.8 mm | 92 mm |
| Engine Compression Ratio | 12.5:1 | 17.7:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 222 km/hour |
| Acceleration 0-100mph | 5.1 seconds | 8.8 seconds |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 2295 kg |
| Vehicle Length | 5070 mm | 5180 mm |
| Vehicle Width | 1900 mm | 1930 mm |
| Vehicle Height | 1430 mm | 1670 mm |
| Wheelbase Size | 2950 mm | 3220 mm |
| Fuel Consumption Overall | 13.6 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
