1999 Aston Martin DB7 vs. 2007 BMW 645
To start off, 2007 BMW 645 is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Aston Martin DB7. In addition, the cost of maintenance, including insurance, on 1999 Aston Martin DB7 would be higher. At 5,935 cc (12 cylinders), 1999 Aston Martin DB7 is equipped with a bigger engine. In terms of performance, 1999 Aston Martin DB7 (414 HP @ 6000 RPM) has 86 more horse power than 2007 BMW 645. (328 HP @ 6100 RPM). In normal driving conditions, 1999 Aston Martin DB7 should accelerate faster than 2007 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 1999 Aston Martin DB7 weights approximately 185 kg more than 2007 BMW 645. 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, 1999 Aston Martin DB7 (550 Nm @ 5000 RPM) has 100 more torque (in Nm) than 2007 BMW 645. (450 Nm @ 3600 RPM). This means 1999 Aston Martin DB7 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 645.
Compare all specifications:
| 1999 Aston Martin DB7 | 2007 BMW 645 | |
| Make | Aston Martin | BMW |
| Model | DB7 | 645 |
| Year Released | 1999 | 2007 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 4398 cc |
| Engine Cylinders | 12 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 328 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 550 Nm | 450 Nm |
| Torque RPM | 5000 RPM | 3600 RPM |
| Engine Compression Ratio | 10.3:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1875 kg | 1690 kg |
| Vehicle Length | 4720 mm | 4830 mm |
| Vehicle Width | 1830 mm | 1860 mm |
| Vehicle Height | 1270 mm | 1380 mm |
| Wheelbase Size | 2600 mm | 2790 mm |
| Fuel Tank Capacity | 89 L | 70 L |
