2003 Opel Signum vs. 2010 Alfa Romeo 159
To start off, 2010 Alfa Romeo 159 is newer by 7 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 2,958 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (174 HP @ 4000 RPM) has 56 more horse power than 2010 Alfa Romeo 159. (118 HP @ 4000 RPM). In normal driving conditions, 2003 Opel Signum should accelerate faster than 2010 Alfa Romeo 159. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 45 kg more than 2010 Alfa Romeo 159. 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, 2003 Opel Signum (370 Nm @ 1900 RPM) has 89 more torque (in Nm) than 2010 Alfa Romeo 159. (281 Nm @ 2000 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2010 Alfa Romeo 159. 2003 Opel Signum has automatic transmission and 2010 Alfa Romeo 159 has manual transmission. 2010 Alfa Romeo 159 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Opel Signum | 2010 Alfa Romeo 159 | |
| Make | Opel | Alfa Romeo |
| Model | Signum | 159 |
| Year Released | 2003 | 2010 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 174 HP | 118 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 370 Nm | 281 Nm |
| Torque RPM | 1900 RPM | 2000 RPM |
| Engine Bore Size | 87.6 mm | 82 mm |
| Engine Stroke Size | 82 mm | 90.4 mm |
| Acceleration 0-100mph | 9.9 seconds | 11.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1695 kg | 1650 kg |
| Vehicle Length | 4640 mm | 4670 mm |
| Vehicle Width | 1800 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2710 mm | 2710 mm |
| Fuel Consumption Overall | 7.9 L/100km | 6 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
