1981 Opel Ascona vs. 1975 Vauxhall Chevette
To start off, 1981 Opel Ascona is newer by 6 year(s). Which means there will be less support and parts availability for 1975 Vauxhall Chevette. In addition, the cost of maintenance, including insurance, on 1975 Vauxhall Chevette would be higher. At 1,598 cc (4 cylinders), 1981 Opel Ascona is equipped with a bigger engine. In terms of performance, 1981 Opel Ascona (81 HP @ 5400 RPM) has 25 more horse power than 1975 Vauxhall Chevette. (56 HP @ 5600 RPM). In normal driving conditions, 1981 Opel Ascona should accelerate faster than 1975 Vauxhall Chevette. With that said, vehicle weight also plays an important factor in acceleration. 1981 Opel Ascona weights approximately 168 kg more than 1975 Vauxhall Chevette. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1981 Opel Ascona (134 Nm @ 2600 RPM) has 45 more torque (in Nm) than 1975 Vauxhall Chevette. (89 Nm @ 2600 RPM). This means 1981 Opel Ascona will have an easier job in driving up hills or pulling heavy equipment than 1975 Vauxhall Chevette.
Compare all specifications:
| 1981 Opel Ascona | 1975 Vauxhall Chevette | |
| Make | Opel | Vauxhall |
| Model | Ascona | Chevette |
| Year Released | 1981 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1254 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 81 HP | 56 HP |
| Engine RPM | 5400 RPM | 5600 RPM |
| Torque | 134 Nm | 89 Nm |
| Torque RPM | 2600 RPM | 2600 RPM |
| Engine Bore Size | 79 mm | 81 mm |
| Engine Stroke Size | 81.5 mm | 61 mm |
| Engine Compression Ratio | 10.0:1 | 8.7:1 |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1014 kg | 846 kg |
| Vehicle Length | 4380 mm | 3950 mm |
| Vehicle Width | 1680 mm | 1580 mm |
| Vehicle Height | 1400 mm | 1310 mm |
| Wheelbase Size | 2580 mm | 2400 mm |
