2007 Aston Martin DB9 vs. 2009 Audi A8
To start off, 2009 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Aston Martin DB9. In addition, the cost of maintenance, including insurance, on 2007 Aston Martin DB9 would be higher. At 5,935 cc (12 cylinders), 2007 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2007 Aston Martin DB9 (451 HP) has 195 more horse power than 2009 Audi A8. (256 HP). In normal driving conditions, 2007 Aston Martin DB9 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2007 Aston Martin DB9 weights approximately 940 kg more than 2009 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Aston Martin DB9 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Aston Martin DB9. However, in wet, icy, snow, or gravel driving conditions, 2009 Audi A8, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 Aston Martin DB9 (570 Nm @ 5000 RPM) has 240 more torque (in Nm) than 2009 Audi A8. (330 Nm @ 3250 RPM). This means 2007 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8. 2009 Audi A8 has automatic transmission and 2007 Aston Martin DB9 has manual transmission. 2007 Aston Martin DB9 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Aston Martin DB9 | 2009 Audi A8 | |
| Make | Aston Martin | Audi |
| Model | DB9 | A8 |
| Year Released | 2007 | 2009 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 3123 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 451 HP | 256 HP |
| Torque | 570 Nm | 330 Nm |
| Torque RPM | 5000 RPM | 3250 RPM |
| Engine Bore Size | 89 mm | 84.5 mm |
| Engine Stroke Size | 79.5 mm | 92.8 mm |
| Engine Compression Ratio | 10.3:1 | 13.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 300 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 7.7 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1835 kg | 895 kg |
| Vehicle Length | 4720 mm | 5060 mm |
| Vehicle Width | 1880 mm | 1900 mm |
| Vehicle Height | 1280 mm | 1450 mm |
| Wheelbase Size | 2750 mm | 2950 mm |
| Fuel Consumption Overall | 17.8 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 78 L | 90 L |
