2008 BMW 645 vs. 2006 BMW MM Roadster
To start off, 2008 BMW 645 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 4,398 cc (8 cylinders), 2008 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW MM Roadster (330 HP @ 7900 RPM) has 2 more horse power than 2008 BMW 645. (328 HP @ 6100 RPM) In normal driving conditions, 2006 BMW MM Roadster should accelerate faster than 2008 BMW 645.
Let's talk about torque, 2008 BMW 645 (450 Nm @ 3600 RPM) has 95 more torque (in Nm) than 2006 BMW MM Roadster. (355 Nm @ 4900 RPM). This means 2008 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW MM Roadster.
Compare all specifications:
2008 BMW 645 | 2006 BMW MM Roadster | |
Make | BMW | BMW |
Model | 645 | MM Roadster |
Year Released | 2008 | 2006 |
Engine Position | Front | Front |
Engine Size | 4398 cc | 3245 cc |
Engine Cylinders | 8 cylinders | 6 cylinders |
Engine Type | V | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 328 HP | 330 HP |
Engine RPM | 6100 RPM | 7900 RPM |
Torque | 450 Nm | 355 Nm |
Torque RPM | 3600 RPM | 4900 RPM |
Engine Compression Ratio | 10.0:1 | 11.5:1 |
Fuel Type | Gasoline - Premium | Gasoline |
Number of Seats | 4 seats | 2 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Length | 4830 mm | 4120 mm |
Vehicle Width | 1860 mm | 1790 mm |
Vehicle Height | 1380 mm | 1310 mm |
Wheelbase Size | 2790 mm | 2500 mm |
Fuel Tank Capacity | 70 L | 55 L |