2003 Alpina B7 vs. 2003 Aston Martin DB9
To start off, both 2003 Alpina B7 and 2003 Aston Martin DB9 were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,935 cc (12 cylinders), 2003 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2003 Alpina B7 (492 HP @ 5500 RPM) has 42 more horse power than 2003 Aston Martin DB9. (450 HP @ 6000 RPM). In normal driving conditions, 2003 Alpina B7 should accelerate faster than 2003 Aston Martin DB9. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina B7 weights approximately 280 kg more than 2003 Aston Martin DB9. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2003 Alpina B7 (700 Nm @ 4250 RPM) has 143 more torque (in Nm) than 2003 Aston Martin DB9. (557 Nm @ 5000 RPM). This means 2003 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2003 Aston Martin DB9. 2003 Alpina B7 has automatic transmission and 2003 Aston Martin DB9 has manual transmission. 2003 Aston Martin DB9 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Alpina B7 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alpina B7 | 2003 Aston Martin DB9 | |
| Make | Alpina | Aston Martin |
| Model | B7 | DB9 |
| Year Released | 2003 | 2003 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4399 cc | 5935 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 492 HP | 450 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 700 Nm | 557 Nm |
| Torque RPM | 4250 RPM | 5000 RPM |
| Top Speed | 295 km/hour | 300 km/hour |
| Acceleration 0-100mph | 5.5 seconds | 4.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1990 kg | 1710 kg |
| Vehicle Length | 5180 mm | 4970 mm |
| Vehicle Width | 1910 mm | 1880 mm |
| Vehicle Height | 1450 mm | 1320 mm |
| Wheelbase Size | 3000 mm | 2750 mm |
| Fuel Tank Capacity | 88 L | 85 L |
