2003 Beijing BJ 2021 vs. 1987 Daihatsu Rocky
To start off, 2003 Beijing BJ 2021 is newer by 16 year(s). Which means there will be less support and parts availability for 1987 Daihatsu Rocky. In addition, the cost of maintenance, including insurance, on 1987 Daihatsu Rocky would be higher. At 2,464 cc (4 cylinders), 2003 Beijing BJ 2021 is equipped with a bigger engine. In terms of performance, 2003 Beijing BJ 2021 (111 HP @ 4800 RPM) has 24 more horse power than 1987 Daihatsu Rocky. (87 HP @ 4600 RPM). In normal driving conditions, 2003 Beijing BJ 2021 should accelerate faster than 1987 Daihatsu Rocky. With that said, vehicle weight also plays an important factor in acceleration. 2003 Beijing BJ 2021 weights approximately 160 kg more than 1987 Daihatsu Rocky. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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, 2003 Beijing BJ 2021 (180 Nm @ 3200 RPM) has 22 more torque (in Nm) than 1987 Daihatsu Rocky. (158 Nm @ 3000 RPM). This means 2003 Beijing BJ 2021 will have an easier job in driving up hills or pulling heavy equipment than 1987 Daihatsu Rocky.
Compare all specifications:
| 2003 Beijing BJ 2021 | 1987 Daihatsu Rocky | |
| Make | Beijing | Daihatsu |
| Model | BJ 2021 | Rocky |
| Year Released | 2003 | 1987 |
| Engine Size | 2464 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 111 HP | 87 HP |
| Engine RPM | 4800 RPM | 4600 RPM |
| Torque | 180 Nm | 158 Nm |
| Torque RPM | 3200 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Vehicle Weight | 1510 kg | 1350 kg |
| Vehicle Length | 4330 mm | 3780 mm |
| Vehicle Width | 1800 mm | 1590 mm |
| Vehicle Height | 1770 mm | 1850 mm |
| Wheelbase Size | 2680 mm | 2210 mm |
