2003 BMW 645 vs. 2007 Toyota Quantum
To start off, 2007 Toyota Quantum is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW 645. In addition, the cost of maintenance, including insurance, on 2003 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (325 HP @ 6100 RPM) has 224 more horse power than 2007 Toyota Quantum. (101 HP @ 3600 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2007 Toyota Quantum. With that said, vehicle weight also plays an important factor in acceleration. 2007 Toyota Quantum weights approximately 225 kg more than 2003 BMW 645.
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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 190 more torque (in Nm) than 2007 Toyota Quantum. (260 Nm @ 1600 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2007 Toyota Quantum.
Compare all specifications:
| 2003 BMW 645 | 2007 Toyota Quantum | |
| Make | BMW | Toyota |
| Model | 645 | Quantum |
| Year Released | 2003 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2494 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 325 HP | 101 HP |
| Engine RPM | 6100 RPM | 3600 RPM |
| Torque | 450 Nm | 260 Nm |
| Torque RPM | 3600 RPM | 1600 RPM |
| Engine Bore Size | 92 mm | 92 mm |
| Engine Stroke Size | 82.7 mm | 93.8 mm |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Top Speed | 250 km/hour | 135 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 28.2 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 3 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1690 kg | 1915 kg |
| Vehicle Length | 4830 mm | 5390 mm |
| Vehicle Width | 1860 mm | 1890 mm |
| Vehicle Height | 1380 mm | 2290 mm |
| Wheelbase Size | 2890 mm | 3120 mm |
| Fuel Tank Capacity | 70 L | 70 L |
