1998 BMW 730 vs. 2007 BMW X3
To start off, 2007 BMW X3 is newer by 9 year(s). Which means there will be less support and parts availability for 1998 BMW 730. In addition, the cost of maintenance, including insurance, on 1998 BMW 730 would be higher. At 2,793 cc (6 cylinders), 1998 BMW 730 is equipped with a bigger engine. In terms of performance, 1998 BMW 730 (190 HP @ 5300 RPM) has 41 more horse power than 2007 BMW X3. (149 HP @ 4000 RPM). In normal driving conditions, 1998 BMW 730 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 1998 BMW 730 weights approximately 5 kg more than 2007 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1998 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 (330 Nm @ 2000 RPM) has 50 more torque (in Nm) than 1998 BMW 730. (280 Nm @ 3950 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1998 BMW 730.
Compare all specifications:
| 1998 BMW 730 | 2007 BMW X3 | |
| Make | BMW | BMW |
| Model | 730 | X3 |
| Year Released | 1998 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2793 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 190 HP | 149 HP |
| Engine RPM | 5300 RPM | 4000 RPM |
| Torque | 280 Nm | 330 Nm |
| Torque RPM | 3950 RPM | 2000 RPM |
| Engine Bore Size | 84.1 mm | 84 mm |
| Engine Stroke Size | 84 mm | 90 mm |
| Engine Compression Ratio | 10.2:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1745 kg | 1740 kg |
| Vehicle Length | 5130 mm | 4570 mm |
| Vehicle Width | 1870 mm | 1680 mm |
| Vehicle Height | 1430 mm | 1860 mm |
| Wheelbase Size | 2940 mm | 2800 mm |
| Fuel Tank Capacity | 90 L | 67 L |
