2003 Alfa Romeo 156 vs. 1998 Opel Vectra
To start off, 2003 Alfa Romeo 156 is newer by 5 year(s). Which means there will be less support and parts availability for 1998 Opel Vectra. In addition, the cost of maintenance, including insurance, on 1998 Opel Vectra would be higher. At 1,747 cc (4 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (138 HP @ 6500 RPM) has 64 more horse power than 1998 Opel Vectra. (74 HP @ 5200 RPM). In normal driving conditions, 2003 Alfa Romeo 156 should accelerate faster than 1998 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 156 weights approximately 130 kg more than 1998 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, 2003 Alfa Romeo 156 (163 Nm @ 3900 RPM) has 35 more torque (in Nm) than 1998 Opel Vectra. (128 Nm @ 2800 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Vectra.
Compare all specifications:
| 2003 Alfa Romeo 156 | 1998 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2003 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 138 HP | 74 HP |
| Engine RPM | 6500 RPM | 5200 RPM |
| Torque | 163 Nm | 128 Nm |
| Torque RPM | 3900 RPM | 2800 RPM |
| Engine Bore Size | 82 mm | 85 mm |
| Engine Stroke Size | 82.7 mm | 69.8 mm |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1315 kg | 1185 kg |
| Vehicle Length | 4450 mm | 4480 mm |
| Vehicle Width | 1750 mm | 1710 mm |
| Vehicle Height | 1440 mm | 1430 mm |
