1987 Beijing BJ 2021 vs. 2007 BMW Convertible
To start off, 2007 BMW Convertible is newer by 20 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 4,799 cc (8 cylinders), 2007 BMW Convertible is equipped with a bigger engine. In terms of performance, 2007 BMW Convertible (362 HP @ 6300 RPM) has 261 more horse power than 1987 Beijing BJ 2021. (101 HP @ 5000 RPM) In normal driving conditions, 2007 BMW Convertible should accelerate faster than 1987 Beijing BJ 2021. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Convertible weights approximately 370 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.
Let's talk about torque, 2007 BMW Convertible (490 Nm @ 3600 RPM) has 311 more torque (in Nm) than 1987 Beijing BJ 2021. (179 Nm @ 2800 RPM). This means 2007 BMW Convertible will have an easier job in driving up hills or pulling heavy equipment than 1987 Beijing BJ 2021. 2007 BMW Convertible has automatic transmission and 1987 Beijing BJ 2021 has manual transmission. 1987 Beijing BJ 2021 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW Convertible will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1987 Beijing BJ 2021 | 2007 BMW Convertible | |
| Make | Beijing | BMW |
| Model | BJ 2021 | Convertible |
| Year Released | 1987 | 2007 |
| Engine Size | 2466 cc | 4799 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 101 HP | 362 HP |
| Engine RPM | 5000 RPM | 6300 RPM |
| Torque | 179 Nm | 490 Nm |
| Torque RPM | 2800 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1480 kg | 1850 kg |
| Vehicle Length | 4290 mm | 4830 mm |
| Vehicle Width | 1800 mm | 1380 mm |
| Vehicle Height | 1620 mm | 1860 mm |
| Wheelbase Size | 2580 mm | 2790 mm |
