2007 BMW X3 vs. 2006 BMW 730
To start off, 2007 BMW X3 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW 730. In addition, the cost of maintenance, including insurance, on 2006 BMW 730 would be higher. At 2,996 cc (6 cylinders), 2006 BMW 730 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (260 HP @ 6600 RPM) has 6 more horse power than 2006 BMW 730. (254 HP @ 6600 RPM). In normal driving conditions, 2007 BMW X3 should accelerate faster than 2006 BMW 730.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 730. 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, 2007 BMW X3 (305 Nm @ 2750 RPM) has 5 more torque (in Nm) than 2006 BMW 730. (300 Nm @ 2500 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 730.
Compare all specifications:
| 2007 BMW X3 | 2006 BMW 730 | |
| Make | BMW | BMW |
| Model | X3 | 730 |
| Year Released | 2007 | 2006 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 260 HP | 254 HP |
| Engine RPM | 6600 RPM | 6600 RPM |
| Torque | 305 Nm | 300 Nm |
| Torque RPM | 2750 RPM | 2500 RPM |
| Engine Compression Ratio | 10.7:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 209 km/hour | 244 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 4 doors |
