2009 Aston Martin DB9 vs. 1973 Porsche 911
To start off, 2009 Aston Martin DB9 is newer by 36 year(s). Which means there will be less support and parts availability for 1973 Porsche 911. In addition, the cost of maintenance, including insurance, on 1973 Porsche 911 would be higher. At 5,935 cc (12 cylinders), 2009 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2009 Aston Martin DB9 (464 HP @ 6000 RPM) has 238 more horse power than 1973 Porsche 911. (226 HP @ 6200 RPM). In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 1973 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2009 Aston Martin DB9 weights approximately 860 kg more than 1973 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, 2009 Aston Martin DB9 (443 Nm @ 5000 RPM) has 168 more torque (in Nm) than 1973 Porsche 911. (275 Nm @ 5000 RPM). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 1973 Porsche 911.
Compare all specifications:
| 2009 Aston Martin DB9 | 1973 Porsche 911 | |
| Make | Aston Martin | Porsche |
| Model | DB9 | 911 |
| Year Released | 2009 | 1973 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5935 cc | 2994 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 464 HP | 226 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 443 Nm | 275 Nm |
| Torque RPM | 5000 RPM | 5000 RPM |
| Engine Bore Size | 89.1 mm | 95 mm |
| Engine Stroke Size | 79.5 mm | 70.4 mm |
| Engine Compression Ratio | 10.9:1 | 8.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1760 kg | 900 kg |
| Vehicle Length | 4710 mm | 4130 mm |
| Vehicle Width | 1880 mm | 1690 mm |
| Vehicle Height | 1320 mm | 1330 mm |
| Wheelbase Size | 2750 mm | 2270 mm |
| Fuel Tank Capacity | 85 L | 80 L |
