2008 BMW X5 vs. 2006 BMW 630
To start off, 2008 BMW X5 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 BMW 630. In addition, the cost of maintenance, including insurance, on 2006 BMW 630 would be higher. At 4,797 cc (8 cylinders), 2008 BMW X5 is equipped with a bigger engine. In terms of performance, 2008 BMW X5 (355 HP @ 6200 RPM) has 101 more horse power than 2006 BMW 630. (254 HP @ 6600 RPM). In normal driving conditions, 2008 BMW X5 should accelerate faster than 2006 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X5 weights approximately 440 kg more than 2006 BMW 630. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 630. In wet, icy, snow, or gravel driving conditions, 2008 BMW X5 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 X5 (490 Nm @ 3600 RPM) has 190 more torque (in Nm) than 2006 BMW 630. (300 Nm @ 2500 RPM). This means 2008 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 630.
Compare all specifications:
| 2008 BMW X5 | 2006 BMW 630 | |
| Make | BMW | BMW |
| Model | X5 | 630 |
| Year Released | 2008 | 2006 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4797 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 355 HP | 254 HP |
| Engine RPM | 6200 RPM | 6600 RPM |
| Torque | 490 Nm | 300 Nm |
| Torque RPM | 3600 RPM | 2500 RPM |
| Engine Bore Size | 93 mm | 85 mm |
| Engine Stroke Size | 88.3 mm | 88 mm |
| Engine Compression Ratio | 11.0:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 246 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 7.2 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2200 kg | 1760 kg |
| Vehicle Length | 4670 mm | 4830 mm |
| Vehicle Width | 1880 mm | 1860 mm |
| Vehicle Height | 1710 mm | 1380 mm |
| Wheelbase Size | 2830 mm | 2790 mm |
| Fuel Consumption Overall | 13.5 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 93 L | 70 L |
