2002 Alfa Romeo 156 vs. 2008 Opel Vectra
To start off, 2008 Opel Vectra is newer by 6 year(s). Which means there will be less support and parts availability for 2002 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2002 Alfa Romeo 156 would be higher. At 2,792 cc (6 cylinders), 2008 Opel Vectra is equipped with a bigger engine. In terms of performance, 2008 Opel Vectra (277 HP @ 5500 RPM) has 129 more horse power than 2002 Alfa Romeo 156. (148 HP @ 4000 RPM) In normal driving conditions, 2008 Opel Vectra should accelerate faster than 2002 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Vectra weights approximately 178 kg more than 2002 Alfa Romeo 156. 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, 2008 Opel Vectra (355 Nm @ 1800 RPM) has 50 more torque (in Nm) than 2002 Alfa Romeo 156. (305 Nm @ 1800 RPM). This means 2008 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2002 Alfa Romeo 156.
Compare all specifications:
| 2002 Alfa Romeo 156 | 2008 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2002 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2385 cc | 2792 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 148 HP | 277 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 305 Nm | 355 Nm |
| Torque RPM | 1800 RPM | 1800 RPM |
| Engine Bore Size | 82 mm | 89 mm |
| Engine Stroke Size | 90.4 mm | 74.8 mm |
| Engine Compression Ratio | 18.5:1 | 9.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 212 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 6.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1435 kg | 1613 kg |
| Vehicle Length | 4440 mm | 4880 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1490 mm |
| Wheelbase Size | 2600 mm | 2840 mm |
| Fuel Tank Capacity | 63 L | 61 L |
