2006 BMW MM Roadster vs. 2013 BMW 7 Series
To start off, 2013 BMW 7 Series is newer by 7 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 4,395 cc (8 cylinders), 2013 BMW 7 Series is equipped with a bigger engine. In terms of performance, 2013 BMW 7 Series (439 HP @ 5500 RPM) has 109 more horse power than 2006 BMW MM Roadster. (330 HP @ 7900 RPM) In normal driving conditions, 2013 BMW 7 Series should accelerate faster than 2006 BMW MM Roadster.
Let's talk about torque, 2013 BMW 7 Series (651 Nm @ 4500 RPM) has 296 more torque (in Nm) than 2006 BMW MM Roadster. (355 Nm @ 4900 RPM). This means 2013 BMW 7 Series will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW MM Roadster.
Compare all specifications:
| 2006 BMW MM Roadster | 2013 BMW 7 Series | |
| Make | BMW | BMW |
| Model | MM Roadster | 7 Series |
| Year Released | 2006 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 3245 cc | 4395 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 330 HP | 439 HP |
| Engine RPM | 7900 RPM | 5500 RPM |
| Torque | 355 Nm | 651 Nm |
| Torque RPM | 4900 RPM | 4500 RPM |
| Engine Compression Ratio | 11.5:1 | 10.0 :1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4120 mm | 5214 mm |
| Vehicle Width | 1790 mm | 2134 mm |
| Vehicle Height | 1310 mm | 1481 mm |
| Wheelbase Size | 2500 mm | 3210 mm |
| Fuel Consumption Highway | 8.1 L/100km | 7.5 L/100km |
| Fuel Consumption City | 13.1 L/100km | 11.6 L/100km |
| Fuel Tank Capacity | 55 L | 80 L |
