2009 Alfa Romeo Spider vs. 2005 Opel Signum
To start off, 2009 Alfa Romeo Spider is newer by 4 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 3,195 cc (6 cylinders), 2009 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 2009 Alfa Romeo Spider (256 HP @ 6300 RPM) has 48 more horse power than 2005 Opel Signum. (208 HP @ 6000 RPM). In normal driving conditions, 2009 Alfa Romeo Spider should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alfa Romeo Spider weights approximately 155 kg more than 2005 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 Spider (322 Nm @ 4500 RPM) has 22 more torque (in Nm) than 2005 Opel Signum. (300 Nm @ 4000 RPM). This means 2009 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum. 2005 Opel Signum has automatic transmission and 2009 Alfa Romeo Spider has manual transmission. 2009 Alfa Romeo Spider will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Alfa Romeo Spider | 2005 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | Spider | Signum |
| Year Released | 2009 | 2005 |
| Body Type | Roadster | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3195 cc | 3174 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 256 HP | 208 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 322 Nm | 300 Nm |
| Torque RPM | 4500 RPM | 4000 RPM |
| Engine Bore Size | 89 mm | 87.5 mm |
| Engine Stroke Size | 85.6 mm | 88 mm |
| Engine Compression Ratio | 11.3:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 240 km/hour | 237 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 7.9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1765 kg | 1610 kg |
| Vehicle Length | 4400 mm | 4640 mm |
| Vehicle Width | 1840 mm | 1800 mm |
| Vehicle Height | 1320 mm | 1470 mm |
| Wheelbase Size | 2530 mm | 2840 mm |
| Fuel Consumption Overall | 12.4 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 69 L | 60 L |
