2007 Citroen C4 vs. 1991 Opel Astra
To start off, 2007 Citroen C4 is newer by 16 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 1,996 cc (4 cylinders), 2007 Citroen C4 is equipped with a bigger engine. In terms of performance, 2007 Citroen C4 (134 HP @ 6000 RPM) has 34 more horse power than 1991 Opel Astra. (100 HP @ 5600 RPM). In normal driving conditions, 2007 Citroen C4 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Citroen C4 weights approximately 338 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, 2007 Citroen C4 (190 Nm @ 4100 RPM) has 55 more torque (in Nm) than 1991 Opel Astra. (135 Nm @ 3400 RPM). This means 2007 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 2007 Citroen C4 | 1991 Opel Astra | |
| Make | Citroen | Opel |
| Model | C4 | Astra |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1996 cc | 1597 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 134 HP | 100 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 190 Nm | 135 Nm |
| Torque RPM | 4100 RPM | 3400 RPM |
| Engine Bore Size | 85 mm | 79 mm |
| Engine Stroke Size | 88 mm | 81.5 mm |
| Engine Compression Ratio | 10.8:1 | 9.8:1 |
| Top Speed | 207 km/hour | 190 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1354 kg | 1016 kg |
| Vehicle Length | 4270 mm | 4060 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2610 mm | 2530 mm |
| Fuel Tank Capacity | 60 L | 75 L |
