1991 Opel Astra vs. 2011 Citroen C5
To start off, 2011 Citroen C5 is newer by 20 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 1,997 cc (4 cylinders), 2011 Citroen C5 is equipped with a bigger engine. In terms of performance, 2011 Citroen C5 (138 HP @ 6000 RPM) has 82 more horse power than 1991 Opel Astra. (56 HP @ 4600 RPM) In normal driving conditions, 2011 Citroen C5 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2011 Citroen C5 weights approximately 567 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, 2011 Citroen C5 (200 Nm @ 4000 RPM) has 95 more torque (in Nm) than 1991 Opel Astra. (105 Nm @ 2400 RPM). This means 2011 Citroen C5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1991 Opel Astra | 2011 Citroen C5 | |
| Make | Opel | Citroen |
| Model | Astra | C5 |
| Year Released | 1991 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1698 cc | 1997 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 56 HP | 138 HP |
| Engine RPM | 4600 RPM | 6000 RPM |
| Torque | 105 Nm | 200 Nm |
| Torque RPM | 2400 RPM | 4000 RPM |
| Engine Bore Size | 82.5 mm | 85 mm |
| Engine Stroke Size | 79.5 mm | 88 mm |
| Engine Compression Ratio | 23.0:1 | 10.8:1 |
| Top Speed | 150 km/hour | 210 km/hour |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1035 kg | 1602 kg |
| Vehicle Length | 4250 mm | 4790 mm |
| Vehicle Width | 1690 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2530 mm | 2820 mm |
| Fuel Tank Capacity | 52 L | 71 L |
