1972 Citroen SM vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 35 year(s). Which means there will be less support and parts availability for 1972 Citroen SM. In addition, the cost of maintenance, including insurance, on 1972 Citroen SM would be higher. At 2,668 cc (6 cylinders), 1972 Citroen SM is equipped with a bigger engine. In terms of performance, 1972 Citroen SM (180 HP) has 32 more horse power than 2007 Opel Astra. (148 HP). In normal driving conditions, 1972 Citroen SM should accelerate faster than 2007 Opel Astra.
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 Opel Astra (320 Nm) has 89 more torque (in Nm) than 1972 Citroen SM. (231 Nm). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1972 Citroen SM.
Compare all specifications:
| 1972 Citroen SM | 2007 Opel Astra | |
| Make | Citroen | Opel |
| Model | SM | Astra |
| Year Released | 1972 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2668 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 180 HP | 148 HP |
| Torque | 231 Nm | 320 Nm |
| Engine Bore Size | 86.9 mm | 82 mm |
| Engine Stroke Size | 74.9 mm | 90.4 mm |
| Engine Compression Ratio | 9.0:1 | 17.5:1 |
| Top Speed | 218 km/hour | 210 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4920 mm | 4300 mm |
| Vehicle Width | 1840 mm | 1760 mm |
| Vehicle Height | 1330 mm | 1440 mm |
| Wheelbase Size | 2960 mm | 2620 mm |
