1973 Citroen SM vs. 1990 Porsche Pan Americana
To start off, 1990 Porsche Pan Americana is newer by 17 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 3,600 cc (6 cylinders), 1990 Porsche Pan Americana is equipped with a bigger engine. In terms of performance, 1990 Porsche Pan Americana (247 HP) has 67 more horse power than 1973 Citroen SM. (180 HP) In normal driving conditions, 1990 Porsche Pan Americana should accelerate faster than 1973 Citroen SM.
Because 1990 Porsche Pan Americana 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 1990 Porsche Pan Americana. 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, 1990 Porsche Pan Americana (310 Nm) has 77 more torque (in Nm) than 1973 Citroen SM. (233 Nm). This means 1990 Porsche Pan Americana will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 1973 Citroen SM | 1990 Porsche Pan Americana | |
| Make | Citroen | Porsche |
| Model | SM | Pan Americana |
| Year Released | 1973 | 1990 |
| Engine Position | Front | Rear |
| Engine Size | 2670 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 180 HP | 247 HP |
| Torque | 233 Nm | 310 Nm |
| Engine Bore Size | 86.9 mm | 100 mm |
| Engine Stroke Size | 74.9 mm | 76.4 mm |
| Engine Compression Ratio | 9.0:1 | 11.3:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4920 mm | 4210 mm |
| Vehicle Width | 1840 mm | 1870 mm |
| Vehicle Height | 1330 mm | 1310 mm |
| Wheelbase Size | 2960 mm | 2280 mm |
