2008 BMW 523 vs. 2006 BMW MM Roadster
To start off, 2008 BMW 523 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 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 155 more horse power than 2008 BMW 523. (175 HP @ 5800 RPM) In normal driving conditions, 2006 BMW MM Roadster should accelerate faster than 2008 BMW 523.
Let's talk about torque, 2006 BMW MM Roadster (355 Nm @ 4900 RPM) has 125 more torque (in Nm) than 2008 BMW 523. (230 Nm @ 3500 RPM). This means 2006 BMW MM Roadster will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 523.
Compare all specifications:
| 2008 BMW 523 | 2006 BMW MM Roadster | |
| Make | BMW | BMW |
| Model | 523 | MM Roadster |
| Year Released | 2008 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 3245 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 330 HP |
| Engine RPM | 5800 RPM | 7900 RPM |
| Torque | 230 Nm | 355 Nm |
| Torque RPM | 3500 RPM | 4900 RPM |
| Engine Compression Ratio | 11.0:1 | 11.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4850 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 |
