2001 BMW Compact vs. 2007 BMW 645
To start off, 2007 BMW 645 is newer by 6 year(s). Which means there will be less support and parts availability for 2001 BMW Compact. In addition, the cost of maintenance, including insurance, on 2001 BMW Compact would be higher. At 4,398 cc (8 cylinders), 2007 BMW 645 is equipped with a bigger engine. In terms of performance, 2007 BMW 645 (328 HP @ 6100 RPM) has 135 more horse power than 2001 BMW Compact. (193 HP @ 7400 RPM) In normal driving conditions, 2007 BMW 645 should accelerate faster than 2001 BMW Compact. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 645 weights approximately 235 kg more than 2001 BMW Compact. 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 645 (450 Nm) has 213 more torque (in Nm) than 2001 BMW Compact. (237 Nm). This means 2007 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2001 BMW Compact.
Compare all specifications:
| 2001 BMW Compact | 2007 BMW 645 | |
| Make | BMW | BMW |
| Model | Compact | 645 |
| Year Released | 2001 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2501 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 193 HP | 328 HP |
| Engine RPM | 7400 RPM | 6100 RPM |
| Torque | 237 Nm | 450 Nm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Vehicle Weight | 1580 kg | 1815 kg |
| Vehicle Length | 4490 mm | 4830 mm |
| Vehicle Width | 1760 mm | 1860 mm |
| Vehicle Height | 1370 mm | 1380 mm |
| Wheelbase Size | 2730 mm | 2790 mm |
| Fuel Tank Capacity | 63 L | 70 L |
