2003 BMW 520 vs. 2006 BMW MM Roadster
To start off, 2006 BMW MM Roadster is newer by 3 year(s). Which means there will be less support and parts availability for 2003 BMW 520. In addition, the cost of maintenance, including insurance, on 2003 BMW 520 would be higher. At 3,245 cc (6 cylinders), 2006 BMW MM Roadster is equipped with a bigger engine. In terms of performance, 2006 BMW MM Roadster (330 HP @ 7900 RPM) has 163 more horse power than 2003 BMW 520. (167 HP @ 6100 RPM) In normal driving conditions, 2006 BMW MM Roadster should accelerate faster than 2003 BMW 520.
Let's talk about torque, 2006 BMW MM Roadster (355 Nm @ 4900 RPM) has 145 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 2006 BMW MM Roadster will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520.
Compare all specifications:
| 2003 BMW 520 | 2006 BMW MM Roadster | |
| Make | BMW | BMW |
| Model | 520 | MM Roadster |
| Year Released | 2003 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2170 cc | 3245 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 167 HP | 330 HP |
| Engine RPM | 6100 RPM | 7900 RPM |
| Torque | 210 Nm | 355 Nm |
| Torque RPM | 3500 RPM | 4900 RPM |
| Engine Compression Ratio | 10.7:1 | 11.5:1 |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4810 mm | 4120 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2890 mm | 2500 mm |
| Fuel Consumption | 7.5 L/100km | 8.1 L/100km |
| Fuel Consumption City | 12.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
