2004 Beijing BJ 2020 vs. 1977 Mazda RX-3
To start off, 2004 Beijing BJ 2020 is newer by 27 year(s). Which means there will be less support and parts availability for 1977 Mazda RX-3. In addition, the cost of maintenance, including insurance, on 1977 Mazda RX-3 would be higher. At 2,445 cc (4 cylinders), 2004 Beijing BJ 2020 is equipped with a bigger engine. In terms of performance, 1977 Mazda RX-3 (100 HP @ 7000 RPM) has 14 more horse power than 2004 Beijing BJ 2020. (86 HP @ 3800 RPM) In normal driving conditions, 1977 Mazda RX-3 should accelerate faster than 2004 Beijing BJ 2020. With that said, vehicle weight also plays an important factor in acceleration. 2004 Beijing BJ 2020 weights approximately 728 kg more than 1977 Mazda RX-3.
Because 2004 Beijing BJ 2020 is four wheel drive (4WD), it will have significant more traction and grip than 1977 Mazda RX-3. In wet, icy, snow, or gravel driving conditions, 2004 Beijing BJ 2020 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, 2004 Beijing BJ 2020 (173 Nm @ 3000 RPM) has 38 more torque (in Nm) than 1977 Mazda RX-3. (135 Nm @ 4000 RPM). This means 2004 Beijing BJ 2020 will have an easier job in driving up hills or pulling heavy equipment than 1977 Mazda RX-3.
Compare all specifications:
| 2004 Beijing BJ 2020 | 1977 Mazda RX-3 | |
| Make | Beijing | Mazda |
| Model | BJ 2020 | RX-3 |
| Year Released | 2004 | 1977 |
| Engine Size | 2445 cc | 1964 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 86 HP | 100 HP |
| Engine RPM | 3800 RPM | 7000 RPM |
| Torque | 173 Nm | 135 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Vehicle Weight | 1580 kg | 852 kg |
| Vehicle Length | 4020 mm | 4090 mm |
| Vehicle Width | 1780 mm | 1600 mm |
| Vehicle Height | 1950 mm | 1380 mm |
| Wheelbase Size | 2310 mm | 2320 mm |
