1977 Citroen GS vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 32 year(s). Which means there will be less support and parts availability for 1977 Citroen GS. In addition, the cost of maintenance, including insurance, on 1977 Citroen GS would be higher. At 3,599 cc (6 cylinders), 2009 Porsche 911 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (409 HP @ 7600 RPM) has 354 more horse power than 1977 Citroen GS. (55 HP @ 6500 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 1977 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche 911 weights approximately 535 kg more than 1977 Citroen GS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Porsche 911 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 2009 Porsche 911. However, in wet, icy, snow, or gravel driving conditions, 1977 Citroen GS, 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, 2009 Porsche 911 (405 Nm @ 5500 RPM) has 333 more torque (in Nm) than 1977 Citroen GS. (72 Nm @ 3500 RPM). This means 2009 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1977 Citroen GS.
Compare all specifications:
| 1977 Citroen GS | 2009 Porsche 911 | |
| Make | Citroen | Porsche |
| Model | GS | 911 |
| Year Released | 1977 | 2009 |
| Engine Position | Front | Rear |
| Engine Size | 1015 cc | 3599 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | boxer | boxer |
| Horse Power | 55 HP | 409 HP |
| Engine RPM | 6500 RPM | 7600 RPM |
| Torque | 72 Nm | 405 Nm |
| Torque RPM | 3500 RPM | 5500 RPM |
| Engine Bore Size | 74 mm | 100 mm |
| Engine Stroke Size | 59 mm | 76.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 890 kg | 1425 kg |
| Vehicle Length | 4130 mm | 4450 mm |
| Vehicle Width | 1620 mm | 1290 mm |
| Vehicle Height | 1360 mm | 1810 mm |
| Wheelbase Size | 2560 mm | 2360 mm |
| Fuel Tank Capacity | 43 L | 67 L |
