2006 BMW X3 vs. 2009 BMW 545
To start off, 2009 BMW 545 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW X3. In addition, the cost of maintenance, including insurance, on 2006 BMW X3 would be higher. At 4,398 cc (8 cylinders), 2009 BMW 545 is equipped with a bigger engine. In terms of performance, 2009 BMW 545 (328 HP @ 6100 RPM) has 100 more horse power than 2006 BMW X3. (228 HP @ 5900 RPM) In normal driving conditions, 2009 BMW 545 should accelerate faster than 2006 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X3 weights approximately 130 kg more than 2009 BMW 545.
Because 2006 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 545. In wet, icy, snow, or gravel driving conditions, 2006 BMW X3 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, 2009 BMW 545 (450 Nm @ 3600 RPM) has 150 more torque (in Nm) than 2006 BMW X3. (300 Nm @ 3500 RPM). This means 2009 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X3.
Compare all specifications:
| 2006 BMW X3 | 2009 BMW 545 | |
| Make | BMW | BMW |
| Model | X3 | 545 |
| Year Released | 2006 | 2009 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2978 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 228 HP | 328 HP |
| Engine RPM | 5900 RPM | 6100 RPM |
| Torque | 300 Nm | 450 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 92 mm |
| Engine Stroke Size | 89.6 mm | 82.7 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 210 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.8 seconds | 6.1 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1835 kg | 1705 kg |
| Vehicle Length | 4570 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1680 mm | 1470 mm |
| Wheelbase Size | 2800 mm | 2890 mm |
| Fuel Consumption Overall | 11.4 L/100km | 11 L/100km |
| Fuel Tank Capacity | 67 L | 70 L |
