2009 Aston Martin DB9 vs. 1977 BMW 520
To start off, 2009 Aston Martin DB9 is newer by 32 year(s). Which means there will be less support and parts availability for 1977 BMW 520. In addition, the cost of maintenance, including insurance, on 1977 BMW 520 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 330 more horse power than 1977 BMW 520. (134 HP @ 4000 RPM). In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 1977 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2009 Aston Martin DB9 weights approximately 195 kg more than 1977 BMW 520. 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 163 more torque (in Nm) than 1977 BMW 520. (280 Nm @ 1750 RPM). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 1977 BMW 520.
Compare all specifications:
| 2009 Aston Martin DB9 | 1977 BMW 520 | |
| Make | Aston Martin | BMW |
| Model | DB9 | 520 |
| Year Released | 2009 | 1977 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 1951 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 464 HP | 134 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 443 Nm | 280 Nm |
| Torque RPM | 5000 RPM | 1750 RPM |
| Engine Bore Size | 89.1 mm | 84 mm |
| Engine Stroke Size | 79.5 mm | 88 mm |
| Engine Compression Ratio | 10.9:1 | 19.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1760 kg | 1565 kg |
| Vehicle Length | 4710 mm | 4780 mm |
| Vehicle Width | 1880 mm | 1810 mm |
| Vehicle Height | 1320 mm | 1440 mm |
| Wheelbase Size | 2750 mm | 2840 mm |
| Fuel Consumption Highway | 13.9 L/100km | 4.7 L/100km |
| Fuel Consumption City | 21.4 L/100km | 7.8 L/100km |
| Fuel Consumption Overall | 18.1 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 85 L | 70 L |
