2006 BMW 545 vs. 2011 BMW 550
To start off, 2011 BMW 550 is newer by 5 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 4,400 cc (8 cylinders), 2011 BMW 550 is equipped with a bigger engine. In terms of performance, 2011 BMW 550 (400 HP @ 5500 RPM) has 72 more horse power than 2006 BMW 545. (328 HP @ 6100 RPM) In normal driving conditions, 2011 BMW 550 should accelerate faster than 2006 BMW 545.
Because 2011 BMW 550 is all wheel drive (AWD), it will have significant more traction and grip than 2006 BMW 545. In wet, icy, snow, or gravel driving conditions, 2011 BMW 550 will offer significantly more control. 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, 2011 BMW 550 (609 Nm @ 1750 RPM) has 159 more torque (in Nm) than 2006 BMW 545. (450 Nm @ 3700 RPM). This means 2011 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 | 2011 BMW 550 | |
| Make | BMW | BMW |
| Model | 545 | 550 |
| Year Released | 2006 | 2011 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 4400 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 400 HP |
| Engine RPM | 6100 RPM | 5500 RPM |
| Torque | 450 Nm | 609 Nm |
| Torque RPM | 3700 RPM | 1750 RPM |
| Drive Type | Rear | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Width | 1850 mm | 1900 mm |
| Fuel Tank Capacity | 70 L | 70 L |
