2003 Opel Vectra vs. 2005 Saleen S7
To start off, 2005 Saleen S7 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 7,000 cc (8 cylinders), 2005 Saleen S7 is equipped with a bigger engine. In terms of performance, 2005 Saleen S7 (750 HP @ 6300 RPM) has 541 more horse power than 2003 Opel Vectra. (209 HP @ 6200 RPM) In normal driving conditions, 2005 Saleen S7 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 378 kg more than 2005 Saleen S7.
Because 2005 Saleen S7 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 Saleen S7. 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, 2005 Saleen S7 (949 Nm @ 4800 RPM) has 649 more torque (in Nm) than 2003 Opel Vectra. (300 Nm @ 4000 RPM). This means 2005 Saleen S7 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2003 Opel Vectra | 2005 Saleen S7 | |
| Make | Opel | Saleen |
| Model | Vectra | S7 |
| Year Released | 2003 | 2005 |
| Engine Position | Front | Middle |
| Engine Size | 3175 cc | 7000 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 209 HP | 750 HP |
| Engine RPM | 6200 RPM | 6300 RPM |
| Torque | 300 Nm | 949 Nm |
| Torque RPM | 4000 RPM | 4800 RPM |
| Top Speed | 239 km/hour | 399 km/hour |
| Acceleration 0-100mph | 8.1 seconds | 2.8 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1625 kg | 1247 kg |
| Vehicle Length | 4830 mm | 4755 mm |
| Vehicle Width | 1800 mm | 1981 mm |
| Vehicle Height | 1510 mm | 1041 mm |
| Wheelbase Size | 2840 mm | 2692 mm |
