2009 Citroen C4 vs. 1973 Citroen SM
To start off, 2009 Citroen C4 is newer by 36 year(s). Which means there will be less support and parts availability for 1973 Citroen SM. In addition, the cost of maintenance, including insurance, on 1973 Citroen SM would be higher. At 2,670 cc (6 cylinders), 1973 Citroen SM is equipped with a bigger engine. In terms of performance, 1973 Citroen SM (180 HP) has 46 more horse power than 2009 Citroen C4. (134 HP) In normal driving conditions, 1973 Citroen SM should accelerate faster than 2009 Citroen C4.
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 (320 Nm) has 87 more torque (in Nm) than 1973 Citroen SM. (233 Nm). This means 2009 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 2009 Citroen C4 | 1973 Citroen SM | |
| Make | Citroen | Citroen |
| Model | C4 | SM |
| Year Released | 2009 | 1973 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2670 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 134 HP | 180 HP |
| Torque | 320 Nm | 233 Nm |
| Engine Bore Size | 85 mm | 86.9 mm |
| Engine Stroke Size | 88 mm | 74.9 mm |
| Engine Compression Ratio | 18.0:1 | 9.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4270 mm | 4920 mm |
| Vehicle Width | 1780 mm | 1840 mm |
| Vehicle Height | 1460 mm | 1330 mm |
| Wheelbase Size | 2610 mm | 2960 mm |
