2008 BMW 550 vs. 2007 BMW X3
To start off, 2008 BMW 550 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 BMW X3. In addition, the cost of maintenance, including insurance, on 2007 BMW X3 would be higher. At 4,800 cc (8 cylinders), 2008 BMW 550 is equipped with a bigger engine. In terms of performance, 2008 BMW 550 (360 HP @ 6300 RPM) has 211 more horse power than 2007 BMW X3. (149 HP @ 4000 RPM). In normal driving conditions, 2008 BMW 550 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 10 kg more than 2008 BMW 550.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 550. In wet, icy, snow, or gravel driving conditions, 2007 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, 2008 BMW 550 (489 Nm @ 3400 RPM) has 159 more torque (in Nm) than 2007 BMW X3. (330 Nm @ 2000 RPM). This means 2008 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3.
Compare all specifications:
| 2008 BMW 550 | 2007 BMW X3 | |
| Make | BMW | BMW |
| Model | 550 | X3 |
| Year Released | 2008 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 4800 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 360 HP | 149 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 489 Nm | 330 Nm |
| Torque RPM | 3400 RPM | 2000 RPM |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 241 km/hour | 215 km/hour |
| Acceleration 0-100mph | 5.5 seconds | 9.1 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1730 kg | 1740 kg |
| Vehicle Length | 4860 mm | 4570 mm |
| Vehicle Width | 1850 mm | 1680 mm |
| Vehicle Height | 1470 mm | 1860 mm |
| Wheelbase Size | 2890 mm | 2800 mm |
| Fuel Consumption Overall | 10.8 L/100km | 6.5 L/100km |
| Fuel Tank Capacity | 70 L | 67 L |
