1990 Beijing BJ 2021 vs. 1990 Mazda RX-7
To start off, both 1990 Beijing BJ 2021 and 1990 Mazda RX-7 were released in the same year (1990). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,616 cc, 1990 Mazda RX-7 is equipped with a bigger engine. In terms of performance, 1990 Mazda RX-7 (148 HP @ 6500 RPM) has 47 more horse power than 1990 Beijing BJ 2021. (101 HP @ 5000 RPM) In normal driving conditions, 1990 Mazda RX-7 should accelerate faster than 1990 Beijing BJ 2021. With that said, vehicle weight also plays an important factor in acceleration. 1990 Beijing BJ 2021 weights approximately 250 kg more than 1990 Mazda RX-7.
Because 1990 Beijing BJ 2021 is four wheel drive (4WD), it will have significant more traction and grip than 1990 Mazda RX-7. In wet, icy, snow, or gravel driving conditions, 1990 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, 1990 Mazda RX-7 (186 Nm @ 3000 RPM) has 7 more torque (in Nm) than 1990 Beijing BJ 2021. (179 Nm @ 2800 RPM). This means 1990 Mazda RX-7 will have an easier job in driving up hills or pulling heavy equipment than 1990 Beijing BJ 2021.
Compare all specifications:
| 1990 Beijing BJ 2021 | 1990 Mazda RX-7 | |
| Make | Beijing | Mazda |
| Model | BJ 2021 | RX-7 |
| Year Released | 1990 | 1990 |
| Engine Size | 2466 cc | 2616 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 101 HP | 148 HP |
| Engine RPM | 5000 RPM | 6500 RPM |
| Torque | 179 Nm | 186 Nm |
| Torque RPM | 2800 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1480 kg | 1230 kg |
| Vehicle Length | 4290 mm | 4320 mm |
| Vehicle Width | 1800 mm | 1700 mm |
| Vehicle Height | 1620 mm | 1270 mm |
| Wheelbase Size | 2580 mm | 2440 mm |
