2008 Aston Martin DB9 vs. 2005 Audi S4
To start off, 2008 Aston Martin DB9 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 5,935 cc (12 cylinders), 2008 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2008 Aston Martin DB9 (444 HP @ 6000 RPM) has 104 more horse power than 2005 Audi S4. (340 HP @ 6300 RPM). In normal driving conditions, 2008 Aston Martin DB9 should accelerate faster than 2005 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Aston Martin DB9 weights approximately 100 kg more than 2005 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2008 Aston Martin DB9 (571 Nm) has 161 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2008 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2008 Aston Martin DB9 | 2005 Audi S4 | |
| Make | Aston Martin | Audi |
| Model | DB9 | S4 |
| Year Released | 2008 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5935 cc | 4163 cc |
| Engine Cylinders | 12 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 444 HP | 340 HP |
| Engine RPM | 6000 RPM | 6300 RPM |
| Torque | 571 Nm | 410 Nm |
| Engine Bore Size | 89 mm | 85.1 mm |
| Engine Stroke Size | 79.5 mm | 93 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1835 kg | 1735 kg |
| Vehicle Length | 4720 mm | 4550 mm |
| Vehicle Width | 1880 mm | 1770 mm |
| Vehicle Height | 1280 mm | 1430 mm |
| Wheelbase Size | 2750 mm | 2660 mm |
| Fuel Consumption Highway | 12.4 L/100km | 11.2 L/100km |
| Fuel Consumption City | 19.6 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 16.5 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 78 L | 63 L |
