2007 BMW 550 vs. 1998 Westfield ZEI
To start off, 2007 BMW 550 is newer by 9 year(s). Which means there will be less support and parts availability for 1998 Westfield ZEI. In addition, the cost of maintenance, including insurance, on 1998 Westfield ZEI would be higher. At 2,497 cc (8 cylinders), 2007 BMW 550 is equipped with a bigger engine. In terms of performance, 2007 BMW 550 (362 HP @ 6300 RPM) has 233 more horse power than 1998 Westfield ZEI. (129 HP @ 6250 RPM). In normal driving conditions, 2007 BMW 550 should accelerate faster than 1998 Westfield ZEI. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 550 weights approximately 940 kg more than 1998 Westfield ZEI. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 550 (491 Nm @ 3400 RPM) has 329 more torque (in Nm) than 1998 Westfield ZEI. (162 Nm @ 4250 RPM). This means 2007 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 1998 Westfield ZEI.
Compare all specifications:
| 2007 BMW 550 | 1998 Westfield ZEI | |
| Make | BMW | Westfield |
| Model | 550 | ZEI |
| Year Released | 2007 | 1998 |
| Engine Size | 2497 cc | 1796 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 362 HP | 129 HP |
| Engine RPM | 6300 RPM | 6250 RPM |
| Torque | 491 Nm | 162 Nm |
| Torque RPM | 3400 RPM | 4250 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1660 kg | 720 kg |
| Vehicle Length | 4850 mm | 3550 mm |
| Vehicle Width | 1490 mm | 1570 mm |
| Vehicle Height | 1850 mm | 1060 mm |
| Wheelbase Size | 2890 mm | 2340 mm |
