2004 Alfa Romeo 156 vs. 2008 Opel Vectra
To start off, 2008 Opel Vectra is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 156 would be higher. At 3,175 cc (6 cylinders), 2008 Opel Vectra is equipped with a bigger engine. In terms of performance, 2008 Opel Vectra (208 HP @ 6200 RPM) has 19 more horse power than 2004 Alfa Romeo 156. (189 HP @ 6300 RPM) In normal driving conditions, 2008 Opel Vectra should accelerate faster than 2004 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Vectra weights approximately 94 kg more than 2004 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, 2008 Opel Vectra (300 Nm @ 4000 RPM) has 82 more torque (in Nm) than 2004 Alfa Romeo 156. (218 Nm @ 5000 RPM). This means 2008 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2004 Alfa Romeo 156.
Compare all specifications:
| 2004 Alfa Romeo 156 | 2008 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2004 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 3175 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 208 HP |
| Engine RPM | 6300 RPM | 6200 RPM |
| Torque | 218 Nm | 300 Nm |
| Torque RPM | 5000 RPM | 4000 RPM |
| Engine Bore Size | 88 mm | 87.5 mm |
| Engine Stroke Size | 68.3 mm | 88 mm |
| Engine Compression Ratio | 10.3:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 230 km/hour | 248 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 7.5 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1524 kg |
| Vehicle Length | 4440 mm | 4600 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2710 mm |
| Fuel Consumption Overall | 12 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 63 L | 61 L |
