2006 BMW 545 vs. 2009 BMW 550
To start off, 2009 BMW 550 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW 545. In addition, the cost of maintenance, including insurance, on 2006 BMW 545 would be higher. At 4,799 cc (8 cylinders), 2009 BMW 550 is equipped with a bigger engine. In terms of performance, 2009 BMW 550 (360 HP @ 6300 RPM) has 32 more horse power than 2006 BMW 545. (328 HP @ 6100 RPM) In normal driving conditions, 2009 BMW 550 should accelerate faster than 2006 BMW 545.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 BMW 550 (489 Nm @ 3400 RPM) has 39 more torque (in Nm) than 2006 BMW 545. (450 Nm @ 3700 RPM). This means 2009 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 545.
Compare all specifications:
| 2006 BMW 545 | 2009 BMW 550 | |
| Make | BMW | BMW |
| Model | 545 | 550 |
| Year Released | 2006 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 4799 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 360 HP |
| Engine RPM | 6100 RPM | 6300 RPM |
| Torque | 450 Nm | 489 Nm |
| Torque RPM | 3700 RPM | 3400 RPM |
| Acceleration 0-100mph | 5.8 seconds | 5.5 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Width | 1850 mm | 1470 mm |
| Fuel Consumption Overall | 10.9 L/100km | 11.1 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
