2008 BMW 550 vs. 2006 BMW MM Roadster
To start off, 2008 BMW 550 is newer by 2 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 4,799 cc, 2008 BMW 550 is equipped with a bigger engine. In terms of performance, 2008 BMW 550 (360 HP @ 6300 RPM) has 30 more horse power than 2006 BMW MM Roadster. (330 HP @ 7900 RPM). In normal driving conditions, 2008 BMW 550 should accelerate faster than 2006 BMW MM Roadster.
Let's talk about torque, 2008 BMW 550 (490 Nm @ 3400 RPM) has 135 more torque (in Nm) than 2006 BMW MM Roadster. (355 Nm @ 4900 RPM). This means 2008 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW MM Roadster.
Compare all specifications:
| 2008 BMW 550 | 2006 BMW MM Roadster | |
| Make | BMW | BMW |
| Model | 550 | MM Roadster |
| Year Released | 2008 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 3245 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 360 HP | 330 HP |
| Engine RPM | 6300 RPM | 7900 RPM |
| Torque | 490 Nm | 355 Nm |
| Torque RPM | 3400 RPM | 4900 RPM |
| Engine Compression Ratio | 10.5:1 | 11.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4860 mm | 4120 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1310 mm |
| Wheelbase Size | 2890 mm | 2500 mm |
| Fuel Tank Capacity | 70 L | 55 L |
