2006 Citroen C4 vs. 1991 Opel Astra
To start off, 2006 Citroen C4 is newer by 15 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 1,598 cc (4 cylinders), 1991 Opel Astra is equipped with a bigger engine. In terms of performance, 2006 Citroen C4 (108 HP) has 8 more horse power than 1991 Opel Astra. (100 HP). In normal driving conditions, 2006 Citroen C4 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Citroen C4 weights approximately 215 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, 2006 Citroen C4 (147 Nm @ 4000 RPM) has 12 more torque (in Nm) than 1991 Opel Astra. (135 Nm @ 3400 RPM). This means 2006 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 2006 Citroen C4 | 1991 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2006 | 1991 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1587 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 108 HP | 100 HP |
| Torque | 147 Nm | 135 Nm |
| Torque RPM | 4000 RPM | 3400 RPM |
| Engine Compression Ratio | 11.0:1 | 9.8:1 |
| Top Speed | 194 km/hour | 173 km/hour |
| Acceleration 0-100mph | 12.2 seconds | 13.1 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1275 kg | 1060 kg |
| Vehicle Length | 4280 mm | 4250 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2610 mm | 2530 mm |
