2009 BMW 550 vs. 2008 BMW X3
To start off, 2009 BMW 550 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW X3. In addition, the cost of maintenance, including insurance, on 2008 BMW X3 would be higher. At 4,798 cc, 2009 BMW 550 is equipped with a bigger engine. In terms of performance, 2009 BMW 550 (362 HP @ 6300 RPM) has 134 more horse power than 2008 BMW X3. (228 HP @ 5900 RPM). In normal driving conditions, 2009 BMW 550 should accelerate faster than 2008 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X3 weights approximately 105 kg more than 2009 BMW 550.
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 (490 Nm @ 3400 RPM) has 190 more torque (in Nm) than 2008 BMW X3. (300 Nm @ 3500 RPM). This means 2009 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW X3.
Compare all specifications:
| 2009 BMW 550 | 2008 BMW X3 | |
| Make | BMW | BMW |
| Model | 550 | X3 |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4798 cc | 2979 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 362 HP | 228 HP |
| Engine RPM | 6300 RPM | 5900 RPM |
| Torque | 490 Nm | 300 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 93 mm | 84 mm |
| Engine Stroke Size | 88.3 mm | 89.6 mm |
| Engine Compression Ratio | 10.5:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 210 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 10 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1660 kg | 1765 kg |
| Vehicle Length | 4850 mm | 4580 mm |
| Vehicle Width | 1470 mm | 1860 mm |
| Vehicle Height | 1850 mm | 1680 mm |
| Wheelbase Size | 2890 mm | 2800 mm |
| Fuel Consumption Overall | 7.8 L/100km | 14.6 L/100km |
| Fuel Tank Capacity | 70 L | 67 L |
