2004 Aston Martin DB7 vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Aston Martin DB7. In addition, the cost of maintenance, including insurance, on 2004 Aston Martin DB7 would be higher. At 5,935 cc (12 cylinders), 2004 Aston Martin DB7 is equipped with a bigger engine. In terms of performance, 2004 Aston Martin DB7 (414 HP @ 6000 RPM) has 225 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM). In normal driving conditions, 2004 Aston Martin DB7 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Aston Martin DB7 weights approximately 543 kg more than 2006 BMW Z4. 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, 2004 Aston Martin DB7 (550 Nm @ 5000 RPM) has 305 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2004 Aston Martin DB7 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2004 Aston Martin DB7 | 2006 BMW Z4 | |
| Make | Aston Martin | BMW |
| Model | DB7 | Z4 |
| Year Released | 2004 | 2006 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 2492 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 189 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 550 Nm | 245 Nm |
| Torque RPM | 5000 RPM | 3500 RPM |
| Engine Bore Size | 89 mm | 84 mm |
| Engine Stroke Size | 79.5 mm | 75 mm |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1878 kg | 1335 kg |
| Vehicle Length | 4720 mm | 4100 mm |
| Vehicle Width | 1830 mm | 1790 mm |
| Vehicle Height | 1270 mm | 1310 mm |
| Wheelbase Size | 2600 mm | 2500 mm |
| Fuel Tank Capacity | 89 L | 55 L |
