1991 Alpina B vs. 1987 Daihatsu Rocky
To start off, 1991 Alpina B is newer by 4 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 5,646 cc (12 cylinders), 1991 Alpina B is equipped with a bigger engine. In terms of performance, 1991 Alpina B (410 HP @ 5400 RPM) has 338 more horse power than 1987 Daihatsu Rocky. (72 HP @ 3600 RPM). In normal driving conditions, 1991 Alpina B should accelerate faster than 1987 Daihatsu Rocky. With that said, vehicle weight also plays an important factor in acceleration. 1991 Alpina B weights approximately 306 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.
Because 1987 Daihatsu Rocky is four wheel drive (4WD), it will have significant more traction and grip than 1991 Alpina B. In wet, icy, snow, or gravel driving conditions, 1987 Daihatsu Rocky 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, 1991 Alpina B (570 Nm @ 4000 RPM) has 400 more torque (in Nm) than 1987 Daihatsu Rocky. (170 Nm @ 2200 RPM). This means 1991 Alpina B will have an easier job in driving up hills or pulling heavy equipment than 1987 Daihatsu Rocky.
Compare all specifications:
| 1991 Alpina B | 1987 Daihatsu Rocky | |
| Make | Alpina | Daihatsu |
| Model | B | Rocky |
| Year Released | 1991 | 1987 |
| Engine Size | 5646 cc | 2765 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 410 HP | 72 HP |
| Engine RPM | 5400 RPM | 3600 RPM |
| Torque | 570 Nm | 170 Nm |
| Torque RPM | 4000 RPM | 2200 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Vehicle Weight | 1866 kg | 1560 kg |
| Vehicle Length | 4790 mm | 4110 mm |
| Vehicle Width | 1860 mm | 1590 mm |
| Vehicle Height | 1350 mm | 1920 mm |
| Wheelbase Size | 2690 mm | 2540 mm |
