2003 Alfa Romeo 8C Competizione vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 8C Competizione. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 8C Competizione would be higher. At 4,242 cc (8 cylinders), 2003 Alfa Romeo 8C Competizione is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 8C Competizione (400 HP @ 7000 RPM) has 225 more horse power than 2005 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2003 Alfa Romeo 8C Competizione should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 170 kg more than 2003 Alfa Romeo 8C Competizione.
Because 2003 Alfa Romeo 8C Competizione 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 Alfa Romeo 8C Competizione. 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, 2003 Alfa Romeo 8C Competizione (441 Nm @ 4500 RPM) has 71 more torque (in Nm) than 2005 Opel Signum. (370 Nm @ 1900 RPM). This means 2003 Alfa Romeo 8C Competizione will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum.
Compare all specifications:
| 2003 Alfa Romeo 8C Competizione | 2005 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 8C Competizione | Signum |
| Year Released | 2003 | 2005 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4242 cc | 2958 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 400 HP | 175 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 441 Nm | 370 Nm |
| Torque RPM | 4500 RPM | 1900 RPM |
| Engine Bore Size | 92 mm | 87.5 mm |
| Engine Stroke Size | 79.8 mm | 82 mm |
| Top Speed | 300 km/hour | 221 km/hour |
| Acceleration 0-100mph | 4.5 seconds | 9.4 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1500 kg | 1670 kg |
| Vehicle Length | 4280 mm | 4640 mm |
| Vehicle Width | 1910 mm | 1800 mm |
| Vehicle Height | 1260 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2620 mm |
| Fuel Tank Capacity | 90 L | 60 L |
