2000 Alfa Romeo 156 vs. 2004 Opel Vectra
To start off, 2004 Opel Vectra is newer by 4 year(s). Which means there will be less support and parts availability for 2000 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2000 Alfa Romeo 156 would be higher. At 3,175 cc (6 cylinders), 2004 Opel Vectra is equipped with a bigger engine. In terms of performance, 2004 Opel Vectra (208 HP @ 6200 RPM) has 60 more horse power than 2000 Alfa Romeo 156. (148 HP @ 6200 RPM) In normal driving conditions, 2004 Opel Vectra should accelerate faster than 2000 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Vectra weights approximately 258 kg more than 2000 Alfa Romeo 156. 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, 2004 Opel Vectra (300 Nm @ 4000 RPM) has 119 more torque (in Nm) than 2000 Alfa Romeo 156. (181 Nm @ 3500 RPM). This means 2004 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2000 Alfa Romeo 156. 2004 Opel Vectra has automatic transmission and 2000 Alfa Romeo 156 has manual transmission. 2000 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2000 Alfa Romeo 156 | 2004 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2000 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 3175 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 208 HP |
| Engine RPM | 6200 RPM | 6200 RPM |
| Torque | 181 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 87.5 mm |
| Engine Stroke Size | 91 mm | 88 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 208 km/hour | 248 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1265 kg | 1523 kg |
| Vehicle Length | 4440 mm | 4600 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2500 mm |
| Fuel Tank Capacity | 63 L | 61 L |
