1971 Citroen SM vs. 2001 Porsche GT2
To start off, 2001 Porsche GT2 is newer by 30 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), 2001 Porsche GT2 is equipped with a bigger engine. In terms of performance, 2001 Porsche GT2 (456 HP @ 5700 RPM) has 298 more horse power than 1971 Citroen SM. (158 HP @ 5500 RPM) In normal driving conditions, 2001 Porsche GT2 should accelerate faster than 1971 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 1971 Citroen SM weights approximately 10 kg more than 2001 Porsche GT2.
Because 2001 Porsche GT2 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 2001 Porsche GT2. 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, 2001 Porsche GT2 (621 Nm @ 3500 RPM) has 386 more torque (in Nm) than 1971 Citroen SM. (235 Nm @ 4000 RPM). This means 2001 Porsche GT2 will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen SM.
Compare all specifications:
| 1971 Citroen SM | 2001 Porsche GT2 | |
| Make | Citroen | Porsche |
| Model | SM | GT2 |
| Year Released | 1971 | 2001 |
| 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 | 4 valves |
| Horse Power | 158 HP | 456 HP |
| Engine RPM | 5500 RPM | 5700 RPM |
| Torque | 235 Nm | 621 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 87 mm | 100 mm |
| Engine Stroke Size | 75 mm | 76.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1450 kg | 1440 kg |
| Vehicle Length | 4900 mm | 4460 mm |
| Vehicle Width | 1850 mm | 1840 mm |
| Vehicle Height | 1330 mm | 1290 mm |
| Wheelbase Size | 2950 mm | 2360 mm |
