2004 Aston Martin DB9 vs. 1989 Porsche 911
To start off, 2004 Aston Martin DB9 is newer by 15 year(s). Which means there will be less support and parts availability for 1989 Porsche 911. In addition, the cost of maintenance, including insurance, on 1989 Porsche 911 would be higher. At 5,935 cc (12 cylinders), 2004 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2004 Aston Martin DB9 (454 HP @ 6000 RPM) has 207 more horse power than 1989 Porsche 911. (247 HP @ 6100 RPM). In normal driving conditions, 2004 Aston Martin DB9 should accelerate faster than 1989 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2004 Aston Martin DB9 weights approximately 366 kg more than 1989 Porsche 911. 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 DB9 (570 Nm @ 5000 RPM) has 260 more torque (in Nm) than 1989 Porsche 911. (310 Nm @ 4800 RPM). This means 2004 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 1989 Porsche 911.
Compare all specifications:
| 2004 Aston Martin DB9 | 1989 Porsche 911 | |
| Make | Aston Martin | Porsche |
| Model | DB9 | 911 |
| Year Released | 2004 | 1989 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5935 cc | 3600 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 454 HP | 247 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 570 Nm | 310 Nm |
| Torque RPM | 5000 RPM | 4800 RPM |
| Engine Bore Size | 89 mm | 100 mm |
| Engine Stroke Size | 79.5 mm | 76.4 mm |
| Engine Compression Ratio | 10.3:1 | 11.3:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1716 kg | 1350 kg |
| Vehicle Length | 4720 mm | 4300 mm |
| Vehicle Width | 1880 mm | 1660 mm |
| Vehicle Height | 1320 mm | 1330 mm |
| Wheelbase Size | 2750 mm | 2270 mm |
| Fuel Tank Capacity | 85 L | 77 L |
