2009 Audi A8 vs. 2006 BMW MM Roadster
To start off, 2009 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW MM Roadster. In addition, the cost of maintenance, including insurance, on 2006 BMW MM Roadster would be higher. At 4,172 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, both vehicles can yield 330 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar.
Let's talk about torque, 2009 Audi A8 (430 Nm @ 3500 RPM) has 75 more torque (in Nm) than 2006 BMW MM Roadster. (355 Nm @ 4900 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW MM Roadster.
Compare all specifications:
| 2009 Audi A8 | 2006 BMW MM Roadster | |
| Make | Audi | BMW |
| Model | A8 | MM Roadster |
| Year Released | 2009 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 3245 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 330 HP |
| Engine RPM | 6500 RPM | 7900 RPM |
| Torque | 430 Nm | 355 Nm |
| Torque RPM | 3500 RPM | 4900 RPM |
| Engine Compression Ratio | 11.0:1 | 11.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5190 mm | 4120 mm |
| Vehicle Width | 1900 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1310 mm |
| Wheelbase Size | 3080 mm | 2500 mm |
| Fuel Tank Capacity | 90 L | 55 L |
