2004 BMW 730 vs. 2006 BMW X5
To start off, 2006 BMW X5 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 BMW 730. In addition, the cost of maintenance, including insurance, on 2004 BMW 730 would be higher. At 2,981 cc (6 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, both vehicles can yield 225 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 45 kg more than 2004 BMW 730.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 730. In wet, icy, snow, or gravel driving conditions, 2006 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, 2004 BMW 730 (300 Nm @ 3500 RPM) has 10 more torque (in Nm) than 2006 BMW X5. (290 Nm @ 3500 RPM). This means 2004 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2004 BMW 730 | 2006 BMW X5 | |
| Make | BMW | BMW |
| Model | 730 | X5 |
| Year Released | 2004 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 2981 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 225 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 300 Nm | 290 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 90 mm | 89.6 mm |
| Engine Compression Ratio | 10.2:1 | 10.2:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1790 kg | 1835 kg |
| Vehicle Length | 5040 mm | 4670 mm |
| Vehicle Width | 1910 mm | 1880 mm |
| Vehicle Height | 1500 mm | 1770 mm |
| Wheelbase Size | 3000 mm | 2830 mm |
| Fuel Tank Capacity | 63 L | 92 L |
