1981 BMW 518 vs. 2001 Daihatsu U4 B
To start off, 2001 Daihatsu U4 B is newer by 20 year(s). Which means there will be less support and parts availability for 1981 BMW 518. In addition, the cost of maintenance, including insurance, on 1981 BMW 518 would be higher. At 1,766 cc (4 cylinders), 1981 BMW 518 is equipped with a bigger engine. In terms of performance, 1981 BMW 518 (90 HP @ 5500 RPM) has 28 more horse power than 2001 Daihatsu U4 B. (62 HP @ 6000 RPM). In normal driving conditions, 1981 BMW 518 should accelerate faster than 2001 Daihatsu U4 B. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 518 weights approximately 320 kg more than 2001 Daihatsu U4 B. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2001 Daihatsu U4 B is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 518. In wet, icy, snow, or gravel driving conditions, 2001 Daihatsu U4 B 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, 1981 BMW 518 (140 Nm @ 4000 RPM) has 32 more torque (in Nm) than 2001 Daihatsu U4 B. (108 Nm @ 3600 RPM). This means 1981 BMW 518 will have an easier job in driving up hills or pulling heavy equipment than 2001 Daihatsu U4 B. 2001 Daihatsu U4 B has automatic transmission and 1981 BMW 518 has manual transmission. 1981 BMW 518 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2001 Daihatsu U4 B will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 BMW 518 | 2001 Daihatsu U4 B | |
| Make | BMW | Daihatsu |
| Model | 518 | U4 B |
| Year Released | 1981 | 2001 |
| Engine Position | Front | Front |
| Engine Size | 1766 cc | 660 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 90 HP | 62 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 140 Nm | 108 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 89 mm | 68 mm |
| Engine Stroke Size | 71.1 mm | 60.5 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1140 kg | 820 kg |
| Vehicle Length | 4630 mm | 3400 mm |
| Vehicle Width | 1710 mm | 1480 mm |
| Vehicle Height | 1430 mm | 1580 mm |
| Wheelbase Size | 2630 mm | 2370 mm |
