1973 Citroen SM vs. 1991 Porsche 944
To start off, 1991 Porsche 944 is newer by 18 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, 1991 Porsche 944 (247 HP @ 5800 RPM) has 76 more horse power than 1973 Citroen SM. (171 HP @ 5500 RPM) In normal driving conditions, 1991 Porsche 944 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 1991 Porsche 944.
Because 1991 Porsche 944 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 1991 Porsche 944. 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, 1991 Porsche 944 (337 Nm @ 4000 RPM) has 100 more torque (in Nm) than 1973 Citroen SM. (237 Nm @ 4000 RPM). This means 1991 Porsche 944 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 1973 Citroen SM | 1991 Porsche 944 | |
| Make | Citroen | Porsche |
| Model | SM | 944 |
| Year Released | 1973 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2670 cc | 2477 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 171 HP | 247 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 237 Nm | 337 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 87 mm | 100 mm |
| Engine Stroke Size | 75 mm | 78.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1450 kg | 1400 kg |
| Vehicle Length | 4900 mm | 4240 mm |
| Vehicle Width | 1850 mm | 1740 mm |
| Vehicle Height | 1330 mm | 1280 mm |
| Wheelbase Size | 2960 mm | 2410 mm |
| Fuel Tank Capacity | 25 L | 80 L |
