1992 Alfa Romeo 155 vs. 2003 Opel Vectra
To start off, 2003 Opel Vectra is newer by 11 year(s). Which means there will be less support and parts availability for 1992 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1992 Alfa Romeo 155 would be higher. At 2,957 cc (6 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2003 Opel Vectra (173 HP @ 4000 RPM) has 48 more horse power than 1992 Alfa Romeo 155. (125 HP @ 6000 RPM) In normal driving conditions, 2003 Opel Vectra should accelerate faster than 1992 Alfa Romeo 155. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 401 kg more than 1992 Alfa Romeo 155. 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, 2003 Opel Vectra (370 Nm @ 1900 RPM) has 204 more torque (in Nm) than 1992 Alfa Romeo 155. (166 Nm @ 5000 RPM). This means 2003 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 1992 Alfa Romeo 155.
Compare all specifications:
| 1992 Alfa Romeo 155 | 2003 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 155 | Vectra |
| Year Released | 1992 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1773 cc | 2957 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 125 HP | 173 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 166 Nm | 370 Nm |
| Torque RPM | 5000 RPM | 1900 RPM |
| Engine Bore Size | 84 mm | 87.5 mm |
| Engine Stroke Size | 80 mm | 82 mm |
| Top Speed | 201 km/hour | 226 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1204 kg | 1605 kg |
| Vehicle Length | 4450 mm | 4600 mm |
| Vehicle Width | 1710 mm | 1770 mm |
| Vehicle Height | 1410 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2740 mm |
| Fuel Tank Capacity | 63 L | 60 L |
