1998 Alfa Romeo 156 vs. 2003 Opel Vectra
To start off, 2003 Opel Vectra is newer by 5 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 156 would be higher. At 2,386 cc (5 cylinders), 1998 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 1998 Alfa Romeo 156 (136 HP @ 4200 RPM) has 16 more horse power than 2003 Opel Vectra. (120 HP @ 5400 RPM). In normal driving conditions, 1998 Alfa Romeo 156 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 120 kg more than 1998 Alfa Romeo 156.
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, 1998 Alfa Romeo 156 (304 Nm @ 2000 RPM) has 137 more torque (in Nm) than 2003 Opel Vectra. (167 Nm @ 3800 RPM). This means 1998 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 1998 Alfa Romeo 156 | 2003 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 1998 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2386 cc | 1794 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 136 HP | 120 HP |
| Engine RPM | 4200 RPM | 5400 RPM |
| Torque | 304 Nm | 167 Nm |
| Torque RPM | 2000 RPM | 3800 RPM |
| Engine Bore Size | 82 mm | 80.5 mm |
| Engine Stroke Size | 90.4 mm | 88.2 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1350 kg | 1470 kg |
| Vehicle Length | 4440 mm | 4830 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1510 mm |
