2001 Daihatsu U4 B vs. 1986 Renault 21
To start off, 2001 Daihatsu U4 B is newer by 15 year(s). Which means there will be less support and parts availability for 1986 Renault 21. In addition, the cost of maintenance, including insurance, on 1986 Renault 21 would be higher. At 2,067 cc (4 cylinders), 1986 Renault 21 is equipped with a bigger engine. In terms of performance, 1986 Renault 21 (87 HP @ 4250 RPM) has 25 more horse power than 2001 Daihatsu U4 B. (62 HP @ 6000 RPM) In normal driving conditions, 1986 Renault 21 should accelerate faster than 2001 Daihatsu U4 B. With that said, vehicle weight also plays an important factor in acceleration. 1986 Renault 21 weights approximately 315 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 1986 Renault 21. 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, 1986 Renault 21 (185 Nm @ 2000 RPM) has 77 more torque (in Nm) than 2001 Daihatsu U4 B. (108 Nm @ 3600 RPM). This means 1986 Renault 21 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 1986 Renault 21 has manual transmission. 1986 Renault 21 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:
| 2001 Daihatsu U4 B | 1986 Renault 21 | |
| Make | Daihatsu | Renault |
| Model | U4 B | 21 |
| Year Released | 2001 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 660 cc | 2067 cc |
| Engine Cylinders | 3 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 62 HP | 87 HP |
| Engine RPM | 6000 RPM | 4250 RPM |
| Torque | 108 Nm | 185 Nm |
| Torque RPM | 3600 RPM | 2000 RPM |
| Engine Bore Size | 68 mm | 86 mm |
| Engine Stroke Size | 60.5 mm | 89 mm |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 820 kg | 1135 kg |
| Vehicle Length | 3400 mm | 4540 mm |
| Vehicle Width | 1480 mm | 1720 mm |
| Vehicle Height | 1580 mm | 1430 mm |
| Wheelbase Size | 2370 mm | 2670 mm |
