2003 Alfa Romeo GTV vs. 2007 Opel Signum
To start off, 2007 Opel Signum is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo GTV. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo GTV would be higher. At 3,178 cc (6 cylinders), 2003 Alfa Romeo GTV is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo GTV (247 HP @ 6500 RPM) has 94 more horse power than 2007 Opel Signum. (153 HP @ 5600 RPM). In normal driving conditions, 2003 Alfa Romeo GTV should accelerate faster than 2007 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Signum weights approximately 120 kg more than 2003 Alfa Romeo GTV.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 GTV (305 Nm @ 4800 RPM) has 85 more torque (in Nm) than 2007 Opel Signum. (220 Nm @ 3800 RPM). This means 2003 Alfa Romeo GTV will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Signum.
Compare all specifications:
| 2003 Alfa Romeo GTV | 2007 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | GTV | Signum |
| Year Released | 2003 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 3178 cc | 2196 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 153 HP |
| Engine RPM | 6500 RPM | 5600 RPM |
| Torque | 305 Nm | 220 Nm |
| Torque RPM | 4800 RPM | 3800 RPM |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 78 mm | 94.6 mm |
| Engine Compression Ratio | 10.5:1 | 12.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1415 kg | 1535 kg |
| Vehicle Length | 4310 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1370 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2840 mm |
| Fuel Tank Capacity | 63 L | 60 L |
