2003 Alpina Roadster vs. 2003 Opel Vectra
To start off, both 2003 Alpina Roadster and 2003 Opel Vectra were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,346 cc (6 cylinders), 2003 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2003 Alpina Roadster (301 HP @ 6300 RPM) has 148 more horse power than 2003 Opel Vectra. (153 HP @ 5600 RPM). In normal driving conditions, 2003 Alpina Roadster should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina Roadster weights approximately 116 kg more than 2003 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Alpina Roadster 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 2003 Alpina Roadster. 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 Alpina Roadster (362 Nm @ 4800 RPM) has 133 more torque (in Nm) than 2003 Opel Vectra. (229 Nm @ 3800 RPM). This means 2003 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra. 2003 Opel Vectra has automatic transmission and 2003 Alpina Roadster has manual transmission. 2003 Alpina Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alpina Roadster | 2003 Opel Vectra | |
| Make | Alpina | Opel |
| Model | Roadster | Vectra |
| Year Released | 2003 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2172 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 153 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 362 Nm | 229 Nm |
| Torque RPM | 4800 RPM | 3800 RPM |
| Engine Bore Size | 87 mm | 86 mm |
| Engine Stroke Size | 93.8 mm | 94.6 mm |
| Engine Compression Ratio | 10.0:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1626 kg | 1510 kg |
| Vehicle Length | 4100 mm | 4830 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1310 mm | 1510 mm |
