2005 Audi A4 vs. 2007 Aston Martin DB9
To start off, 2007 Aston Martin DB9 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 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 231 more horse power than 2005 Audi A4. (220 HP @ 6200 RPM) In normal driving conditions, 2007 Aston Martin DB9 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Aston Martin DB9 weights approximately 105 kg more than 2005 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A4 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, 2005 Audi A4 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) has 270 more torque (in Nm) than 2005 Audi A4. (300 Nm). This means 2007 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4. 2007 Aston Martin DB9 has automatic transmission and 2005 Audi A4 has manual transmission. 2005 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Aston Martin DB9 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A4 | 2007 Aston Martin DB9 | |
| Make | Audi | Aston Martin |
| Model | A4 | DB9 |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 5935 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 220 HP | 451 HP |
| Engine RPM | 6200 RPM | 5750 RPM |
| Torque | 300 Nm | 570 Nm |
| Engine Bore Size | 83 mm | 89 mm |
| Engine Stroke Size | 93 mm | 79.5 mm |
| Engine Compression Ratio | 10.1:1 | 10.3:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1730 kg | 1835 kg |
| Vehicle Length | 4550 mm | 4720 mm |
| Vehicle Width | 1770 mm | 1880 mm |
| Vehicle Height | 1430 mm | 1280 mm |
| Wheelbase Size | 2770 mm | 2750 mm |
| Fuel Consumption | 9.4 L/100km | 12.4 L/100km |
| Fuel Consumption City | 13.1 L/100km | 19.6 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 17.8 L/100km |
| Fuel Tank Capacity | 66 L | 78 L |
