2004 Aston Martin DB9 vs. 2007 Audi S4
To start off, 2007 Audi S4 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Aston Martin DB9. In addition, the cost of maintenance, including insurance, on 2004 Aston Martin DB9 would be higher. At 5,930 cc (12 cylinders), 2004 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2004 Aston Martin DB9 (450 HP @ 6000 RPM) has 111 more horse power than 2007 Audi S4. (339 HP @ 7000 RPM). In normal driving conditions, 2004 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 25 kg more than 2004 Aston Martin DB9.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2004 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, 2004 Aston Martin DB9 (570 Nm) has 160 more torque (in Nm) than 2007 Audi S4. (410 Nm). This means 2004 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 2004 Aston Martin DB9 | 2007 Audi S4 | |
| Make | Aston Martin | Audi |
| Model | DB9 | S4 |
| Year Released | 2004 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5930 cc | 4163 cc |
| Engine Cylinders | 12 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 450 HP | 339 HP |
| Engine RPM | 6000 RPM | 7000 RPM |
| Torque | 570 Nm | 410 Nm |
| Engine Bore Size | 89 mm | 84.5 mm |
| Engine Stroke Size | 80 mm | 92.8 mm |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1710 kg | 1735 kg |
| Vehicle Length | 4700 mm | 4580 mm |
| Vehicle Width | 1880 mm | 1790 mm |
| Vehicle Height | 1320 mm | 1420 mm |
| Wheelbase Size | 2750 mm | 2660 mm |
| Fuel Tank Capacity | 85 L | 63 L |
