2006 Alpina B7 vs. 2003 Vauxhall Signum
To start off, 2006 Alpina B7 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Vauxhall Signum. In addition, the cost of maintenance, including insurance, on 2003 Vauxhall Signum would be higher. At 4,398 cc (8 cylinders), 2006 Alpina B7 is equipped with a bigger engine. In terms of performance, 2006 Alpina B7 (492 HP @ 5500 RPM) has 284 more horse power than 2003 Vauxhall Signum. (208 HP @ 6200 RPM). In normal driving conditions, 2006 Alpina B7 should accelerate faster than 2003 Vauxhall Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alpina B7 weights approximately 468 kg more than 2003 Vauxhall Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Alpina B7 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 Alpina B7. However, in wet, icy, snow, or gravel driving conditions, 2003 Vauxhall Signum, being front wheel drive (FWD), will offer much better control with better grip. 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, 2006 Alpina B7 (700 Nm @ 4250 RPM) has 400 more torque (in Nm) than 2003 Vauxhall Signum. (300 Nm @ 4000 RPM). This means 2006 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2003 Vauxhall Signum.
Compare all specifications:
| 2006 Alpina B7 | 2003 Vauxhall Signum | |
| Make | Alpina | Vauxhall |
| Model | B7 | Signum |
| Year Released | 2006 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3175 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 492 HP | 208 HP |
| Engine RPM | 5500 RPM | 6200 RPM |
| Torque | 700 Nm | 300 Nm |
| Torque RPM | 4250 RPM | 4000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1950 kg | 1482 kg |
| Vehicle Length | 5040 mm | 4640 mm |
| Vehicle Width | 1910 mm | 1800 mm |
| Vehicle Height | 1480 mm | 1470 mm |
| Wheelbase Size | 3000 mm | 2840 mm |
