1991 Beijing BJ 2021 vs. 1977 Citroen GS
To start off, 1991 Beijing BJ 2021 is newer by 14 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 2,466 cc (4 cylinders), 1991 Beijing BJ 2021 is equipped with a bigger engine. In terms of performance, 1991 Beijing BJ 2021 (100 HP @ 5000 RPM) has 45 more horse power than 1977 Citroen GS. (55 HP @ 6500 RPM). In normal driving conditions, 1991 Beijing BJ 2021 should accelerate faster than 1977 Citroen GS. With that said, vehicle weight also plays an important factor in acceleration. 1991 Beijing BJ 2021 weights approximately 590 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 1991 Beijing BJ 2021 is four wheel drive (4WD), it will have significant more traction and grip than 1977 Citroen GS. In wet, icy, snow, or gravel driving conditions, 1991 Beijing BJ 2021 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, 1991 Beijing BJ 2021 (180 Nm @ 2800 RPM) has 108 more torque (in Nm) than 1977 Citroen GS. (72 Nm @ 3500 RPM). This means 1991 Beijing BJ 2021 will have an easier job in driving up hills or pulling heavy equipment than 1977 Citroen GS.
Compare all specifications:
| 1991 Beijing BJ 2021 | 1977 Citroen GS | |
| Make | Beijing | Citroen |
| Model | BJ 2021 | GS |
| Year Released | 1991 | 1977 |
| Engine Size | 2466 cc | 1015 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 100 HP | 55 HP |
| Engine RPM | 5000 RPM | 6500 RPM |
| Torque | 180 Nm | 72 Nm |
| Torque RPM | 2800 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Vehicle Weight | 1480 kg | 890 kg |
| Vehicle Length | 4290 mm | 4130 mm |
| Vehicle Width | 1800 mm | 1620 mm |
| Vehicle Height | 1620 mm | 1360 mm |
| Wheelbase Size | 2580 mm | 2560 mm |
