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 1,389 cc (4 cylinders), 1991 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Citroen C4 (87 HP @ 5250 RPM) has 28 more horse power than 1991 Opel Astra. (59 HP @ 5200 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 326 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 (133 Nm @ 3250 RPM) has 30 more torque (in Nm) than 1991 Opel Astra. (103 Nm @ 2800 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 | 1360 cc | 1389 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 87 HP | 59 HP |
| Engine RPM | 5250 RPM | 5200 RPM |
| Torque | 133 Nm | 103 Nm |
| Torque RPM | 3250 RPM | 2800 RPM |
| Engine Compression Ratio | 11.2:1 | 9.4:1 |
| Top Speed | 177 km/hour | 160 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 | 1256 kg | 930 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 |
