2003 Alpina Roadster vs. 1987 Beijing BJ 2021
To start off, 2003 Alpina Roadster is newer by 16 year(s). Which means there will be less support and parts availability for 1987 Beijing BJ 2021. In addition, the cost of maintenance, including insurance, on 1987 Beijing BJ 2021 would be higher. At 3,346 cc (6 cylinders), 2003 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2003 Alpina Roadster (301 HP @ 6300 RPM) has 200 more horse power than 1987 Beijing BJ 2021. (101 HP @ 5000 RPM). In normal driving conditions, 2003 Alpina Roadster should accelerate faster than 1987 Beijing BJ 2021. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina Roadster weights approximately 146 kg more than 1987 Beijing BJ 2021. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1987 Beijing BJ 2021 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 1987 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, 2003 Alpina Roadster (362 Nm @ 4800 RPM) has 183 more torque (in Nm) than 1987 Beijing BJ 2021. (179 Nm @ 2800 RPM). This means 2003 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 1987 Beijing BJ 2021.
Compare all specifications:
| 2003 Alpina Roadster | 1987 Beijing BJ 2021 | |
| Make | Alpina | Beijing |
| Model | Roadster | BJ 2021 |
| Year Released | 2003 | 1987 |
| Engine Size | 3346 cc | 2466 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 301 HP | 101 HP |
| Engine RPM | 6300 RPM | 5000 RPM |
| Torque | 362 Nm | 179 Nm |
| Torque RPM | 4800 RPM | 2800 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1626 kg | 1480 kg |
| Vehicle Length | 4100 mm | 4290 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1310 mm | 1620 mm |
| Wheelbase Size | 2500 mm | 2580 mm |
