1973 Citroen SM vs. 1992 Porsche 968
To start off, 1992 Porsche 968 is newer by 19 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 2,990 cc (4 cylinders), 1992 Porsche 968 is equipped with a bigger engine. In terms of performance, 1992 Porsche 968 (241 HP @ 6200 RPM) has 70 more horse power than 1973 Citroen SM. (171 HP @ 5500 RPM) In normal driving conditions, 1992 Porsche 968 should accelerate faster than 1973 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 1973 Citroen SM weights approximately 50 kg more than 1992 Porsche 968.
Because 1992 Porsche 968 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 1992 Porsche 968. 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, 1992 Porsche 968 (305 Nm @ 4100 RPM) has 68 more torque (in Nm) than 1973 Citroen SM. (237 Nm @ 4000 RPM). This means 1992 Porsche 968 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 1973 Citroen SM | 1992 Porsche 968 | |
| Make | Citroen | Porsche |
| Model | SM | 968 |
| Year Released | 1973 | 1992 |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 2990 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 171 HP | 241 HP |
| Engine RPM | 5500 RPM | 6200 RPM |
| Torque | 237 Nm | 305 Nm |
| Torque RPM | 4000 RPM | 4100 RPM |
| Engine Bore Size | 87 mm | 104 mm |
| Engine Stroke Size | 75 mm | 88 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1450 kg | 1400 kg |
| Vehicle Length | 4900 mm | 4350 mm |
| Vehicle Width | 1850 mm | 1730 mm |
| Vehicle Height | 1330 mm | 1280 mm |
| Wheelbase Size | 2960 mm | 2510 mm |
| Fuel Tank Capacity | 25 L | 74 L |
