2009 Audi A3 vs. 2007 Aston Martin DB9
To start off, 2009 Audi A3 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 @ 5750 RPM) has 251 more horse power than 2009 Audi A3. (200 HP @ 5100 RPM) In normal driving conditions, 2007 Aston Martin DB9 should accelerate faster than 2009 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Aston Martin DB9 weights approximately 905 kg more than 2009 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Aston Martin DB9. In wet, icy, snow, or gravel driving conditions, 2009 Audi A3 will offer significantly more control. 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 289 more torque (in Nm) than 2009 Audi A3. (281 Nm @ 1800 RPM). This means 2007 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A3.
Compare all specifications:
| 2009 Audi A3 | 2007 Aston Martin DB9 | |
| Make | Audi | Aston Martin |
| Model | A3 | DB9 |
| Year Released | 2009 | 2007 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 5935 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 200 HP | 451 HP |
| Engine RPM | 5100 RPM | 5750 RPM |
| Torque | 281 Nm | 570 Nm |
| Torque RPM | 1800 RPM | 5000 RPM |
| Engine Bore Size | 82.5 mm | 89 mm |
| Engine Stroke Size | 92.8 mm | 79.5 mm |
| Engine Compression Ratio | 10.5:1 | 10.3:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 930 kg | 1835 kg |
| Vehicle Length | 4290 mm | 4720 mm |
| Vehicle Width | 1970 mm | 1880 mm |
| Vehicle Height | 1430 mm | 1280 mm |
| Wheelbase Size | 2580 mm | 2750 mm |
| Fuel Consumption | 8.4 L/100km | 12.4 L/100km |
| Fuel Consumption City | 10.7 L/100km | 19.6 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 17.8 L/100km |
| Fuel Tank Capacity | 55 L | 78 L |
