2003 Alfa Romeo 156 vs. 2002 Opel Vectra
To start off, 2003 Alfa Romeo 156 is newer by 1 year(s). Which means there will be less support and parts availability for 2002 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2002 Opel Vectra would be higher. At 1,774 cc (4 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (138 HP @ 6200 RPM) has 38 more horse power than 2002 Opel Vectra. (100 HP @ 6200 RPM). In normal driving conditions, 2003 Alfa Romeo 156 should accelerate faster than 2002 Opel Vectra.
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 Alfa Romeo 156 (164 Nm @ 3900 RPM) has 14 more torque (in Nm) than 2002 Opel Vectra. (150 Nm @ 3200 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2002 Opel Vectra.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2002 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2003 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 1774 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 100 HP |
| Engine RPM | 6200 RPM | 6200 RPM |
| Torque | 164 Nm | 150 Nm |
| Torque RPM | 3900 RPM | 3200 RPM |
| Engine Bore Size | 82 mm | 79 mm |
| Engine Stroke Size | 82.7 mm | 81.5 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1340 kg | 1340 kg |
| Vehicle Length | 4440 mm | 4500 mm |
| Vehicle Width | 1750 mm | 1720 mm |
| Vehicle Height | 1400 mm | 1500 mm |
| Wheelbase Size | 2600 mm | 2650 mm |
