2007 Audi S4 vs. 2005 Aston Martin DB9
To start off, 2007 Audi S4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Aston Martin DB9. In addition, the cost of maintenance, including insurance, on 2005 Aston Martin DB9 would be higher. At 5,935 cc (12 cylinders), 2005 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2005 Aston Martin DB9 (444 HP @ 6000 RPM) has 105 more horse power than 2007 Audi S4. (339 HP @ 7000 RPM) In normal driving conditions, 2005 Aston Martin DB9 should accelerate faster than 2007 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 45 kg more than 2005 Aston Martin DB9.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Aston Martin DB9. In wet, icy, snow, or gravel driving conditions, 2007 Audi S4 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, 2005 Aston Martin DB9 (571 Nm @ 5000 RPM) has 161 more torque (in Nm) than 2007 Audi S4. (410 Nm @ 3500 RPM). This means 2005 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 2007 Audi S4 | 2005 Aston Martin DB9 | |
| Make | Audi | Aston Martin |
| Model | S4 | DB9 |
| Year Released | 2007 | 2005 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 5935 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 339 HP | 444 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 410 Nm | 571 Nm |
| Torque RPM | 3500 RPM | 5000 RPM |
| Engine Bore Size | 84.6 mm | 89 mm |
| Engine Stroke Size | 92.8 mm | 79.5 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 5.9 seconds | 5.1 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1755 kg | 1710 kg |
| Vehicle Length | 4590 mm | 4710 mm |
| Vehicle Width | 1730 mm | 1880 mm |
| Vehicle Height | 1430 mm | 1320 mm |
| Wheelbase Size | 2650 mm | 2750 mm |
| Fuel Consumption Overall | 12.3 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 63 L | 85 L |
