1991 Opel Astra vs. 2009 Citroen C4
To start off, 2009 Citroen C4 is newer by 18 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, 2009 Citroen C4 (108 HP @ 4000 RPM) has 8 more horse power than 1991 Opel Astra. (100 HP @ 5600 RPM) In normal driving conditions, 2009 Citroen C4 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C4 weights approximately 295 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, 2009 Citroen C4 (241 Nm @ 1750 RPM) has 106 more torque (in Nm) than 1991 Opel Astra. (135 Nm @ 3400 RPM). This means 2009 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 | 2009 Citroen C4 | |
| Make | Opel | Citroen |
| Model | Astra | C4 |
| Year Released | 1991 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1560 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 100 HP | 108 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 135 Nm | 241 Nm |
| Torque RPM | 3400 RPM | 1750 RPM |
| Top Speed | 173 km/hour | 192 km/hour |
| Acceleration 0-100mph | 13.1 seconds | 12.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1060 kg | 1355 kg |
| Vehicle Length | 4250 mm | 4270 mm |
| Vehicle Width | 1690 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2530 mm | 2610 mm |
