1971 Citroen GS vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 34 year(s). Which means there will be less support and parts availability for 1971 Citroen GS. In addition, the cost of maintenance, including insurance, on 1971 Citroen GS would be higher. At 3,600 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (414 HP @ 6000 RPM) has 359 more horse power than 1971 Citroen GS. (55 HP @ 6500 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1971 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 850 kg more than 1971 Citroen GS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1971 Citroen GS. In wet, icy, snow, or gravel driving conditions, 2005 Porsche 911 will offer significantly more control. 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, 2005 Porsche 911 (560 Nm @ 2700 RPM) has 488 more torque (in Nm) than 1971 Citroen GS. (72 Nm @ 3500 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen GS.
Compare all specifications:
| 1971 Citroen GS | 2005 Porsche 911 | |
| Make | Citroen | Porsche |
| Model | GS | 911 |
| Year Released | 1971 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 1015 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | boxer | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 55 HP | 414 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 72 Nm | 560 Nm |
| Torque RPM | 3500 RPM | 2700 RPM |
| Engine Bore Size | 74 mm | 100 mm |
| Engine Stroke Size | 59 mm | 76.4 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 890 kg | 1740 kg |
| Vehicle Length | 4130 mm | 4440 mm |
| Vehicle Width | 1620 mm | 1840 mm |
| Vehicle Height | 1360 mm | 1300 mm |
| Wheelbase Size | 2560 mm | 2360 mm |
| Fuel Tank Capacity | 43 L | 64 L |
