1971 Citroen GS vs. 1991 Rover 400
To start off, 1991 Rover 400 is newer by 20 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 1,395 cc (4 cylinders), 1991 Rover 400 is equipped with a bigger engine. In terms of performance, 1991 Rover 400 (94 HP @ 6250 RPM) has 39 more horse power than 1971 Citroen GS. (55 HP @ 6500 RPM) In normal driving conditions, 1991 Rover 400 should accelerate faster than 1971 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 1991 Rover 400 weights approximately 130 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.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 Rover 400 (124 Nm @ 4000 RPM) has 52 more torque (in Nm) than 1971 Citroen GS. (72 Nm @ 3500 RPM). This means 1991 Rover 400 will have an easier job in driving up hills or pulling heavy equipment than 1971 Citroen GS.
Compare all specifications:
| 1971 Citroen GS | 1991 Rover 400 | |
| Make | Citroen | Rover |
| Model | GS | 400 |
| Year Released | 1971 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1015 cc | 1395 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 55 HP | 94 HP |
| Engine RPM | 6500 RPM | 6250 RPM |
| Torque | 72 Nm | 124 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 74 mm | 75 mm |
| Engine Stroke Size | 59 mm | 79 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 890 kg | 1020 kg |
| Vehicle Length | 4130 mm | 4370 mm |
| Vehicle Width | 1620 mm | 1690 mm |
| Vehicle Height | 1360 mm | 1410 mm |
| Wheelbase Size | 2560 mm | 2560 mm |
