2004 Beijing BJ 2021 vs. 1977 BMW 520
To start off, 2004 Beijing BJ 2021 is newer by 27 year(s). Which means there will be less support and parts availability for 1977 BMW 520. In addition, the cost of maintenance, including insurance, on 1977 BMW 520 would be higher. At 2,466 cc (4 cylinders), 2004 Beijing BJ 2021 is equipped with a bigger engine. In terms of performance, 1977 BMW 520 (134 HP @ 4000 RPM) has 23 more horse power than 2004 Beijing BJ 2021. (111 HP @ 4800 RPM) In normal driving conditions, 1977 BMW 520 should accelerate faster than 2004 Beijing BJ 2021. With that said, vehicle weight also plays an important factor in acceleration. 1977 BMW 520 weights approximately 55 kg more than 2004 Beijing BJ 2021. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Beijing BJ 2021 is four wheel drive (4WD), it will have significant more traction and grip than 1977 BMW 520. In wet, icy, snow, or gravel driving conditions, 2004 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, 1977 BMW 520 (280 Nm @ 1750 RPM) has 100 more torque (in Nm) than 2004 Beijing BJ 2021. (180 Nm @ 3200 RPM). This means 1977 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 2004 Beijing BJ 2021.
Compare all specifications:
| 2004 Beijing BJ 2021 | 1977 BMW 520 | |
| Make | Beijing | BMW |
| Model | BJ 2021 | 520 |
| Year Released | 2004 | 1977 |
| Engine Size | 2466 cc | 1951 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 111 HP | 134 HP |
| Engine RPM | 4800 RPM | 4000 RPM |
| Torque | 180 Nm | 280 Nm |
| Torque RPM | 3200 RPM | 1750 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1510 kg | 1565 kg |
| Vehicle Length | 4330 mm | 4780 mm |
| Vehicle Width | 1800 mm | 1810 mm |
| Vehicle Height | 1770 mm | 1440 mm |
| Wheelbase Size | 2680 mm | 2840 mm |
