2003 Aston Martin DB7 vs. 1991 BMW Z1
To start off, 2003 Aston Martin DB7 is newer by 12 year(s). Which means there will be less support and parts availability for 1991 BMW Z1. In addition, the cost of maintenance, including insurance, on 1991 BMW Z1 would be higher. At 5,935 cc (12 cylinders), 2003 Aston Martin DB7 is equipped with a bigger engine. In terms of performance, 2003 Aston Martin DB7 (435 HP @ 6000 RPM) has 260 more horse power than 1991 BMW Z1. (175 HP @ 5800 RPM). In normal driving conditions, 2003 Aston Martin DB7 should accelerate faster than 1991 BMW Z1. With that said, vehicle weight also plays an important factor in acceleration. 2003 Aston Martin DB7 weights approximately 490 kg more than 1991 BMW Z1. 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, 2003 Aston Martin DB7 (540 Nm @ 5000 RPM) has 310 more torque (in Nm) than 1991 BMW Z1. (230 Nm @ 4000 RPM). This means 2003 Aston Martin DB7 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW Z1.
Compare all specifications:
| 2003 Aston Martin DB7 | 1991 BMW Z1 | |
| Make | Aston Martin | BMW |
| Model | DB7 | Z1 |
| Year Released | 2003 | 1991 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 2497 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 435 HP | 175 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 540 Nm | 230 Nm |
| Torque RPM | 5000 RPM | 4000 RPM |
| Engine Bore Size | 89 mm | 82 mm |
| Engine Stroke Size | 79.5 mm | 78.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Vehicle Weight | 1740 kg | 1250 kg |
| Vehicle Length | 4490 mm | 3960 mm |
| Vehicle Width | 1870 mm | 1810 mm |
| Vehicle Height | 1250 mm | 1280 mm |
| Wheelbase Size | 2540 mm | 2450 mm |
