2005 Alfa Romeo 156 vs. 1999 Opel Vectra
To start off, 2005 Alfa Romeo 156 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Opel Vectra. In addition, the cost of maintenance, including insurance, on 1999 Opel Vectra would be higher. At 1,796 cc (4 cylinders), 1999 Opel Vectra is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (118 HP @ 6500 RPM) has 4 more horse power than 1999 Opel Vectra. (114 HP @ 5400 RPM). In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 1999 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Vectra weights approximately 142 kg more than 2005 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, 1999 Opel Vectra (170 Nm @ 3400 RPM) has 23 more torque (in Nm) than 2005 Alfa Romeo 156. (147 Nm @ 4500 RPM). This means 1999 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156.
Compare all specifications:
| 2005 Alfa Romeo 156 | 1999 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2005 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 118 HP | 114 HP |
| Engine RPM | 6500 RPM | 5400 RPM |
| Torque | 147 Nm | 170 Nm |
| Torque RPM | 4500 RPM | 3400 RPM |
| Engine Bore Size | 82 mm | 80.5 mm |
| Engine Stroke Size | 75.7 mm | 88.2 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1250 kg | 1392 kg |
| Vehicle Length | 4450 mm | 4500 mm |
| Vehicle Width | 1750 mm | 1720 mm |
| Vehicle Height | 1440 mm | 1500 mm |
| Wheelbase Size | 2710 mm | 2650 mm |
