1973 Citroen SM vs. 2009 Porsche Cayman
To start off, 2009 Porsche Cayman 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 3,385 cc, 2009 Porsche Cayman is equipped with a bigger engine. In terms of performance, 2009 Porsche Cayman (291 HP) has 111 more horse power than 1973 Citroen SM. (180 HP) In normal driving conditions, 2009 Porsche Cayman should accelerate faster than 1973 Citroen SM.
Because 2009 Porsche Cayman is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2009 Porsche Cayman. However, in wet, icy, snow, or gravel driving conditions, 1973 Citroen SM, being front wheel drive (FWD), will offer much better control with better grip. 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 Porsche Cayman (340 Nm) has 107 more torque (in Nm) than 1973 Citroen SM. (233 Nm). This means 2009 Porsche Cayman will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 1973 Citroen SM | 2009 Porsche Cayman | |
| Make | Citroen | Porsche |
| Model | SM | Cayman |
| Year Released | 1973 | 2009 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 2670 cc | 3385 cc |
| Horse Power | 180 HP | 291 HP |
| Torque | 233 Nm | 340 Nm |
| Engine Bore Size | 86.9 mm | 96.3 mm |
| Engine Stroke Size | 74.9 mm | 78.3 mm |
| Engine Compression Ratio | 9.0:1 | 11.1:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4920 mm | 4350 mm |
| Vehicle Width | 1840 mm | 1310 mm |
| Vehicle Height | 1330 mm | 1810 mm |
| Wheelbase Size | 2960 mm | 2420 mm |
