2009 Alfa Romeo GT vs. 2004 Opel Signum
To start off, 2009 Alfa Romeo GT is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 3,179 cc (6 cylinders), 2009 Alfa Romeo GT is equipped with a bigger engine. In terms of performance, 2009 Alfa Romeo GT (237 HP @ 6200 RPM) has 114 more horse power than 2004 Opel Signum. (123 HP @ 6000 RPM). In normal driving conditions, 2009 Alfa Romeo GT should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alfa Romeo GT weights approximately 5 kg more than 2004 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2009 Alfa Romeo GT (300 Nm @ 4800 RPM) has 133 more torque (in Nm) than 2004 Opel Signum. (167 Nm @ 3800 RPM). This means 2009 Alfa Romeo GT will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum.
Compare all specifications:
| 2009 Alfa Romeo GT | 2004 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | GT | Signum |
| Year Released | 2009 | 2004 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 237 HP | 123 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 300 Nm | 167 Nm |
| Torque RPM | 4800 RPM | 3800 RPM |
| Engine Bore Size | 93.1 mm | 80.5 mm |
| Engine Stroke Size | 78 mm | 88.2 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 6.7 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1485 kg | 1480 kg |
| Vehicle Length | 4500 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1370 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2640 mm |
| Fuel Consumption Overall | 12.4 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 63 L | 60 L |
