2004 BMW 730 vs. 2007 BMW X5
To start off, 2007 BMW X5 is newer by 3 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 4,397 cc (8 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (316 HP @ 6100 RPM) has 91 more horse power than 2004 BMW 730. (225 HP @ 6000 RPM) In normal driving conditions, 2007 BMW X5 should accelerate faster than 2004 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 405 kg more than 2004 BMW 730. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 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, 2007 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, 2007 BMW X5 (440 Nm @ 3700 RPM) has 140 more torque (in Nm) than 2004 BMW 730. (300 Nm @ 3500 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 730.
Compare all specifications:
| 2004 BMW 730 | 2007 BMW X5 | |
| Make | BMW | BMW |
| Model | 730 | X5 |
| Year Released | 2004 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 4397 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 316 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 300 Nm | 440 Nm |
| Torque RPM | 3500 RPM | 3700 RPM |
| Engine Bore Size | 84 mm | 92 mm |
| Engine Stroke Size | 90 mm | 82.7 mm |
| Engine Compression Ratio | 10.2:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1790 kg | 2195 kg |
| Vehicle Length | 5040 mm | 4670 mm |
| Vehicle Width | 1910 mm | 1880 mm |
| Vehicle Height | 1500 mm | 1710 mm |
| Wheelbase Size | 3000 mm | 2830 mm |
| Fuel Tank Capacity | 63 L | 93 L |
