2002 Alfa Romeo 156 vs. 2006 Opel Vectra
To start off, 2006 Opel Vectra is newer by 4 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), 2006 Opel Vectra is equipped with a bigger engine. In terms of performance, 2006 Opel Vectra (252 HP @ 5500 RPM) has 134 more horse power than 2002 Alfa Romeo 156. (118 HP @ 6200 RPM) In normal driving conditions, 2006 Opel Vectra should accelerate faster than 2002 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Vectra weights approximately 190 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, 2006 Opel Vectra (355 Nm @ 1800 RPM) has 209 more torque (in Nm) than 2002 Alfa Romeo 156. (146 Nm @ 4200 RPM). This means 2006 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 | 2006 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2002 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 2792 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 118 HP | 252 HP |
| Engine RPM | 6200 RPM | 5500 RPM |
| Torque | 146 Nm | 355 Nm |
| Torque RPM | 4200 RPM | 1800 RPM |
| Engine Compression Ratio | 10.3:1 | 9.5:1 |
| Top Speed | 200 km/hour | 255 km/hour |
| Acceleration 0-100mph | 11 seconds | 6.7 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 | 1390 kg | 1580 kg |
| Vehicle Length | 4450 mm | 4620 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2710 mm |
| Fuel Tank Capacity | 63 L | 60 L |
