2005 Opel Vectra vs. 1991 Opel Astra
To start off, 2005 Opel Vectra is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 2,958 cc (6 cylinders), 2005 Opel Vectra is equipped with a bigger engine. In terms of performance, 2005 Opel Vectra (175 HP @ 4000 RPM) has 119 more horse power than 1991 Opel Astra. (56 HP @ 4600 RPM). In normal driving conditions, 2005 Opel Vectra should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Vectra weights approximately 563 kg more than 1991 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, 2005 Opel Vectra (370 Nm @ 1900 RPM) has 265 more torque (in Nm) than 1991 Opel Astra. (105 Nm @ 2400 RPM). This means 2005 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 2005 Opel Vectra | 1991 Opel Astra | |
| Make | Opel | Opel |
| Model | Vectra | Astra |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 1700 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 175 HP | 56 HP |
| Engine RPM | 4000 RPM | 4600 RPM |
| Torque | 370 Nm | 105 Nm |
| Torque RPM | 1900 RPM | 2400 RPM |
| Engine Bore Size | 87.6 mm | 82.5 mm |
| Engine Stroke Size | 82 mm | 79.5 mm |
| Engine Compression Ratio | 18.5:1 | 23.0:1 |
| Acceleration 0-100mph | 9.3 seconds | 18.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1613 kg | 1050 kg |
| Vehicle Length | 4600 mm | 4060 mm |
| Vehicle Width | 1800 mm | 1670 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2620 mm | 2530 mm |
| Fuel Tank Capacity | 61 L | 40 L |
