2007 Opel Vectra vs. 2004 Alfa Romeo 166
To start off, 2007 Opel Vectra is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 166 would be higher. At 3,175 cc (6 cylinders), 2007 Opel Vectra is equipped with a bigger engine. In terms of performance, 2007 Opel Vectra (208 HP @ 6200 RPM) has 35 more horse power than 2004 Alfa Romeo 166. (173 HP @ 4000 RPM). In normal driving conditions, 2007 Opel Vectra should accelerate faster than 2004 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Vectra weights approximately 45 kg more than 2004 Alfa Romeo 166. 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 Alfa Romeo 166 (330 Nm @ 1750 RPM) has 29 more torque (in Nm) than 2007 Opel Vectra. (301 Nm @ 4000 RPM). This means 2004 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Vectra.
Compare all specifications:
| 2007 Opel Vectra | 2004 Alfa Romeo 166 | |
| Make | Opel | Alfa Romeo |
| Model | Vectra | 166 |
| Year Released | 2007 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 3175 cc | 2387 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 208 HP | 173 HP |
| Engine RPM | 6200 RPM | 4000 RPM |
| Torque | 301 Nm | 330 Nm |
| Torque RPM | 4000 RPM | 1750 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 239 km/hour | 213 km/hour |
| Acceleration 0-100mph | 8.1 seconds | 8.9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1625 kg | 1580 kg |
| Vehicle Length | 4830 mm | 4730 mm |
| Vehicle Width | 1800 mm | 1810 mm |
| Vehicle Height | 1510 mm | 1420 mm |
| Wheelbase Size | 2840 mm | 2710 mm |
| Fuel Consumption Overall | 10.1 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 60 L | 69 L |
