2005 Alpina B7 vs. 2004 Beijing BJ 2021
To start off, 2005 Alpina B7 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Beijing BJ 2021. In addition, the cost of maintenance, including insurance, on 2004 Beijing BJ 2021 would be higher. At 4,398 cc (8 cylinders), 2005 Alpina B7 is equipped with a bigger engine. In terms of performance, 2005 Alpina B7 (492 HP @ 5500 RPM) has 381 more horse power than 2004 Beijing BJ 2021. (111 HP @ 4800 RPM). In normal driving conditions, 2005 Alpina B7 should accelerate faster than 2004 Beijing BJ 2021. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alpina B7 weights approximately 440 kg more than 2004 Beijing BJ 2021. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Beijing BJ 2021 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Alpina B7. In wet, icy, snow, or gravel driving conditions, 2004 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, 2005 Alpina B7 (700 Nm @ 4250 RPM) has 520 more torque (in Nm) than 2004 Beijing BJ 2021. (180 Nm @ 3200 RPM). This means 2005 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2004 Beijing BJ 2021. 2005 Alpina B7 has automatic transmission and 2004 Beijing BJ 2021 has manual transmission. 2004 Beijing BJ 2021 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Alpina B7 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Alpina B7 | 2004 Beijing BJ 2021 | |
| Make | Alpina | Beijing |
| Model | B7 | BJ 2021 |
| Year Released | 2005 | 2004 |
| Engine Size | 4398 cc | 2466 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 492 HP | 111 HP |
| Engine RPM | 5500 RPM | 4800 RPM |
| Torque | 700 Nm | 180 Nm |
| Torque RPM | 4250 RPM | 3200 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Vehicle Weight | 1950 kg | 1510 kg |
| Vehicle Length | 5040 mm | 4330 mm |
| Vehicle Width | 1910 mm | 1800 mm |
| Vehicle Height | 1480 mm | 1770 mm |
| Wheelbase Size | 3000 mm | 2680 mm |
