2005 Opel Signum vs. 2007 Saleen S7
To start off, 2007 Saleen S7 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 7,000 cc (8 cylinders), 2007 Saleen S7 is equipped with a bigger engine. In terms of performance, 2007 Saleen S7 (750 HP @ 6300 RPM) has 651 more horse power than 2005 Opel Signum. (99 HP @ 3120 RPM) In normal driving conditions, 2007 Saleen S7 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 348 kg more than 2007 Saleen S7.
Because 2007 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 2007 Saleen S7. However, in wet, icy, snow, or gravel driving conditions, 2005 Opel 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, 2007 Saleen S7 (949 Nm @ 4800 RPM) has 719 more torque (in Nm) than 2005 Opel Signum. (230 Nm @ 1500 RPM). This means 2007 Saleen S7 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum.
Compare all specifications:
| 2005 Opel Signum | 2007 Saleen S7 | |
| Make | Opel | Saleen |
| Model | Signum | S7 |
| Year Released | 2005 | 2007 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 1993 cc | 7000 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 99 HP | 750 HP |
| Engine RPM | 3120 RPM | 6300 RPM |
| Torque | 230 Nm | 949 Nm |
| Torque RPM | 1500 RPM | 4800 RPM |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 185 km/hour | 399 km/hour |
| Acceleration 0-100mph | 14 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 | 1595 kg | 1247 kg |
| Vehicle Length | 4640 mm | 4755 mm |
| Vehicle Width | 1800 mm | 1981 mm |
| Vehicle Height | 1470 mm | 1041 mm |
| Wheelbase Size | 2740 mm | 2692 mm |
