1971 Citroen SM vs. 1995 Porsche 993
To start off, 1995 Porsche 993 is newer by 24 year(s). Which means there will be less support and parts availability for 1971 Citroen SM. In addition, the cost of maintenance, including insurance, on 1971 Citroen SM would be higher. At 3,600 cc (6 cylinders), 1995 Porsche 993 is equipped with a bigger engine. In terms of performance, 1995 Porsche 993 (402 HP @ 5750 RPM) has 244 more horse power than 1971 Citroen SM. (158 HP @ 5500 RPM) In normal driving conditions, 1995 Porsche 993 should accelerate faster than 1971 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 1995 Porsche 993 weights approximately 50 kg more than 1971 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1995 Porsche 993 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 1995 Porsche 993. However, in wet, icy, snow, or gravel driving conditions, 1971 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, 1995 Porsche 993 (541 Nm @ 4500 RPM) has 306 more torque (in Nm) than 1971 Citroen SM. (235 Nm @ 4000 RPM). This means 1995 Porsche 993 will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen SM.
Compare all specifications:
| 1971 Citroen SM | 1995 Porsche 993 | |
| Make | Citroen | Porsche |
| Model | SM | 993 |
| Year Released | 1971 | 1995 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2670 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 158 HP | 402 HP |
| Engine RPM | 5500 RPM | 5750 RPM |
| Torque | 235 Nm | 541 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 87 mm | 100 mm |
| Engine Stroke Size | 75 mm | 76.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1450 kg | 1500 kg |
| Vehicle Width | 1850 mm | 1800 mm |
