2005 Opel Astra vs. 2003 Opel Vectra
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 1,994 cc (4 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2005 Opel Astra (123 HP @ 5600 RPM) has 23 more horse power than 2003 Opel Vectra. (100 HP @ 4300 RPM). In normal driving conditions, 2005 Opel Astra should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 225 kg more than 2005 Opel Astra.
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 (205 Nm @ 1600 RPM) has 35 more torque (in Nm) than 2005 Opel Astra. (170 Nm @ 3800 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:
| 2005 Opel Astra | 2003 Opel Vectra | |
| Make | Opel | Opel |
| Model | Astra | Vectra |
| Year Released | 2005 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1795 cc | 1994 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 123 HP | 100 HP |
| Engine RPM | 5600 RPM | 4300 RPM |
| Torque | 170 Nm | 205 Nm |
| Torque RPM | 3800 RPM | 1600 RPM |
| Engine Bore Size | 80.5 mm | 84 mm |
| Engine Stroke Size | 88.2 mm | 90 mm |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1265 kg | 1490 kg |
| Vehicle Length | 4300 mm | 4830 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1510 mm |
