2006 Alfa Romeo 156 vs. 2001 Opel Vectra
To start off, 2006 Alfa Romeo 156 is newer by 5 year(s). Which means there will be less support and parts availability for 2001 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2001 Opel Vectra would be higher. At 2,387 cc (5 cylinders), 2006 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2006 Alfa Romeo 156 (173 HP @ 4000 RPM) has 50 more horse power than 2001 Opel Vectra. (123 HP @ 4000 RPM). In normal driving conditions, 2006 Alfa Romeo 156 should accelerate faster than 2001 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 156 weights approximately 120 kg more than 2001 Opel Vectra. 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 Alfa Romeo 156 (385 Nm @ 2000 RPM) has 115 more torque (in Nm) than 2001 Opel Vectra. (270 Nm @ 1500 RPM). This means 2006 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2001 Opel Vectra.
Compare all specifications:
| 2006 Alfa Romeo 156 | 2001 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2006 | 2001 |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 2260 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 123 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 385 Nm | 270 Nm |
| Torque RPM | 2000 RPM | 1500 RPM |
| Engine Compression Ratio | 18.5:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1510 kg | 1390 kg |
| Vehicle Length | 4440 mm | 4500 mm |
| Vehicle Width | 1750 mm | 1720 mm |
| Vehicle Height | 1440 mm | 1500 mm |
| Wheelbase Size | 2550 mm | 2650 mm |
| Fuel Tank Capacity | 63 L | 60 L |
