2005 Aston Martin DB9 vs. 1984 Porsche 911
To start off, 2005 Aston Martin DB9 is newer by 21 year(s). Which means there will be less support and parts availability for 1984 Porsche 911. In addition, the cost of maintenance, including insurance, on 1984 Porsche 911 would be higher. At 5,935 cc (12 cylinders), 2005 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2005 Aston Martin DB9 (444 HP @ 6000 RPM) has 215 more horse power than 1984 Porsche 911. (229 HP @ 5900 RPM). In normal driving conditions, 2005 Aston Martin DB9 should accelerate faster than 1984 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2005 Aston Martin DB9 weights approximately 480 kg more than 1984 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, 2005 Aston Martin DB9 (571 Nm @ 5000 RPM) has 285 more torque (in Nm) than 1984 Porsche 911. (286 Nm @ 4800 RPM). This means 2005 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 1984 Porsche 911.
Compare all specifications:
| 2005 Aston Martin DB9 | 1984 Porsche 911 | |
| Make | Aston Martin | Porsche |
| Model | DB9 | 911 |
| Year Released | 2005 | 1984 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 5935 cc | 3164 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 444 HP | 229 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 571 Nm | 286 Nm |
| Torque RPM | 5000 RPM | 4800 RPM |
| Engine Bore Size | 89 mm | 95 mm |
| Engine Stroke Size | 79.5 mm | 74.4 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1710 kg | 1230 kg |
| Vehicle Length | 4710 mm | 4300 mm |
| Vehicle Width | 1880 mm | 1660 mm |
| Vehicle Height | 1320 mm | 1330 mm |
| Wheelbase Size | 2750 mm | 2280 mm |
| Fuel Tank Capacity | 85 L | 80 L |
