1991 Opel Astra vs. 2010 Citroen C4
To start off, 2010 Citroen C4 is newer by 19 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 1,560 cc (4 cylinders), 2010 Citroen C4 is equipped with a bigger engine. In terms of performance, 2010 Citroen C4 (108 HP @ 4000 RPM) has 26 more horse power than 1991 Opel Astra. (82 HP @ 5800 RPM) In normal driving conditions, 2010 Citroen C4 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2010 Citroen C4 weights approximately 674 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, 2010 Citroen C4 (240 Nm @ 1750 RPM) has 127 more torque (in Nm) than 1991 Opel Astra. (113 Nm @ 3400 RPM). This means 2010 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1991 Opel Astra | 2010 Citroen C4 | |
| Make | Opel | Citroen |
| Model | Astra | C4 |
| Year Released | 1991 | 2010 |
| Engine Position | Front | Front |
| Engine Size | 1388 cc | 1560 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 82 HP | 108 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 113 Nm | 240 Nm |
| Torque RPM | 3400 RPM | 1750 RPM |
| Engine Bore Size | 77.6 mm | 75 mm |
| Engine Stroke Size | 73.4 mm | 88 mm |
| Engine Compression Ratio | 9.4:1 | 18.0:1 |
| Top Speed | 171 km/hour | 180 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 940 kg | 1614 kg |
| Vehicle Length | 4060 mm | 4590 mm |
| Vehicle Width | 1690 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1630 mm |
| Wheelbase Size | 2610 mm | 2730 mm |
