2007 Audi A4 vs. 2009 Aston Martin DB9
To start off, 2009 Aston Martin DB9 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 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 (470 HP @ 6000 RPM) has 273 more horse power than 2007 Audi A4. (197 HP @ 5100 RPM) In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Aston Martin DB9 weights approximately 205 kg more than 2007 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 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 2009 Aston Martin DB9. However, in wet, icy, snow, or gravel driving conditions, 2007 Audi A4, 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, 2009 Aston Martin DB9 (600 Nm @ 5000 RPM) has 320 more torque (in Nm) than 2007 Audi A4. (280 Nm @ 1800 RPM). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2009 Aston Martin DB9 | |
| Make | Audi | Aston Martin |
| Model | A4 | DB9 |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 5935 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 197 HP | 470 HP |
| Engine RPM | 5100 RPM | 6000 RPM |
| Torque | 280 Nm | 600 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 | 10.9:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 238 km/hour | 306 km/hour |
| Acceleration 0-100mph | 8.2 seconds | 4.6 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1630 kg | 1835 kg |
| Vehicle Length | 4580 mm | 4720 mm |
| Vehicle Width | 1400 mm | 1880 mm |
| Vehicle Height | 1780 mm | 1280 mm |
| Wheelbase Size | 2660 mm | 2750 mm |
| Fuel Consumption Overall | 8.3 L/100km | 16.4 L/100km |
| Fuel Tank Capacity | 70 L | 78 L |
