2005 Alpina B3 vs. 2003 Opel Vectra
To start off, 2005 Alpina B3 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2003 Opel Vectra would be higher. At 3,346 cc (6 cylinders), 2005 Alpina B3 is equipped with a bigger engine. In terms of performance, 2005 Alpina B3 (301 HP @ 6300 RPM) has 128 more horse power than 2003 Opel Vectra. (173 HP @ 4000 RPM). In normal driving conditions, 2005 Alpina B3 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 125 kg more than 2005 Alpina B3.
Because 2005 Alpina B3 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 2005 Alpina B3. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Vectra, 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, 2003 Opel Vectra (370 Nm @ 1900 RPM) has 8 more torque (in Nm) than 2005 Alpina B3. (362 Nm @ 4800 RPM). This means 2003 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2005 Alpina B3.
Compare all specifications:
| 2005 Alpina B3 | 2003 Opel Vectra | |
| Make | Alpina | Opel |
| Model | B3 | Vectra |
| Year Released | 2005 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2957 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 173 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 362 Nm | 370 Nm |
| Torque RPM | 4800 RPM | 1900 RPM |
| Engine Bore Size | 87 mm | 87.5 mm |
| Engine Stroke Size | 93.8 mm | 82 mm |
| Engine Compression Ratio | 9.0:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1480 kg | 1605 kg |
| Vehicle Length | 4490 mm | 4600 mm |
| Vehicle Width | 1760 mm | 1770 mm |
| Vehicle Height | 1370 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2740 mm |
| Fuel Tank Capacity | 88 L | 60 L |
