2006 Infiniti QX4 vs. 1986 Renault 21
To start off, 2006 Infiniti QX4 is newer by 20 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 5,552 cc (8 cylinders), 2006 Infiniti QX4 is equipped with a bigger engine. In terms of performance, 2006 Infiniti QX4 (315 HP @ 4900 RPM) has 140 more horse power than 1986 Renault 21. (175 HP @ 5200 RPM). In normal driving conditions, 2006 Infiniti QX4 should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 1986 Renault 21 weights approximately 25 kg more than 2006 Infiniti QX4.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2006 Infiniti QX4 (530 Nm @ 3600 RPM) has 255 more torque (in Nm) than 1986 Renault 21. (275 Nm @ 3000 RPM). This means 2006 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21. 2006 Infiniti QX4 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. 2006 Infiniti QX4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Infiniti QX4 | 1986 Renault 21 | |
| Make | Infiniti | Renault |
| Model | QX4 | 21 |
| Year Released | 2006 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 315 HP | 175 HP |
| Engine RPM | 4900 RPM | 5200 RPM |
| Torque | 530 Nm | 275 Nm |
| Torque RPM | 3600 RPM | 3000 RPM |
| Engine Bore Size | 98 mm | 88 mm |
| Engine Stroke Size | 92 mm | 82 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1320 kg | 1345 kg |
| Vehicle Length | 5260 mm | 4540 mm |
| Vehicle Width | 2010 mm | 1730 mm |
| Vehicle Height | 1960 mm | 1430 mm |
| Wheelbase Size | 3140 mm | 2670 mm |
