2007 Audi A8 vs. 2005 Mercedes-Benz R
To start off, 2007 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz R. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz R would be higher. At 3,936 cc (8 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (271 HP @ 3750 RPM) has 50 more horse power than 2005 Mercedes-Benz R. (221 HP @ 4200 RPM). In normal driving conditions, 2007 Audi A8 should accelerate faster than 2005 Mercedes-Benz R. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz R weights approximately 330 kg more than 2007 Audi A8.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear 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, 2007 Audi A8 (651 Nm @ 1800 RPM) has 140 more torque (in Nm) than 2005 Mercedes-Benz R. (511 Nm @ 1600 RPM). This means 2007 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz R.
Compare all specifications:
| 2007 Audi A8 | 2005 Mercedes-Benz R | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | R |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3936 cc | 2987 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 271 HP | 221 HP |
| Engine RPM | 3750 RPM | 4200 RPM |
| Torque | 651 Nm | 511 Nm |
| Torque RPM | 1800 RPM | 1600 RPM |
| Engine Bore Size | 81 mm | 83 mm |
| Engine Stroke Size | 95.5 mm | 92 mm |
| Top Speed | 250 km/hour | 215 km/hour |
| Acceleration 0-100mph | 6.7 seconds | 8.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 2270 kg |
| Vehicle Length | 5190 mm | 5160 mm |
| Vehicle Width | 1900 mm | 1930 mm |
| Vehicle Height | 1450 mm | 1660 mm |
| Wheelbase Size | 2950 mm | 3220 mm |
| Fuel Tank Capacity | 90 L | 80 L |
