2003 Opel Vectra vs. 2005 Opel Astra
To start off, 2005 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2003 Opel Vectra would be higher. At 1,995 cc (4 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2003 Opel Vectra (173 HP @ 5500 RPM) has 69 more horse power than 2005 Opel Astra. (104 HP @ 6000 RPM). In normal driving conditions, 2003 Opel Vectra should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 350 kg more than 2005 Opel Astra. 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 Opel Vectra (265 Nm @ 2500 RPM) has 115 more torque (in Nm) than 2005 Opel Astra. (150 Nm @ 3900 RPM). This means 2003 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2003 Opel Vectra | 2005 Opel Astra | |
| Make | Opel | Opel |
| Model | Vectra | Astra |
| Year Released | 2003 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 104 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 265 Nm | 150 Nm |
| Torque RPM | 2500 RPM | 3900 RPM |
| Engine Bore Size | 86 mm | 79 mm |
| Engine Stroke Size | 86 mm | 81.5 mm |
| Engine Compression Ratio | 9.5:1 | 10.5:1 |
| Top Speed | 222 km/hour | 187 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1585 kg | 1235 kg |
| Vehicle Length | 4830 mm | 4300 mm |
| Vehicle Width | 1800 mm | 1760 mm |
| Vehicle Height | 1510 mm | 1440 mm |
| Wheelbase Size | 2710 mm | 2700 mm |
| Fuel Consumption Highway | 6.9 L/100km | 5.6 L/100km |
| Fuel Consumption City | 13.1 L/100km | 8.8 L/100km |
| Fuel Consumption Overall | 9.2 L/100km | 6.8 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
