2007 BMW X3 vs. 1986 Renault 21
To start off, 2007 BMW X3 is newer by 21 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 2,993 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (215 HP @ 4000 RPM) has 40 more horse power than 1986 Renault 21. (175 HP @ 5200 RPM). In normal driving conditions, 2007 BMW X3 should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 420 kg more than 1986 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2007 BMW X3 (480 Nm @ 1750 RPM) has 205 more torque (in Nm) than 1986 Renault 21. (275 Nm @ 3000 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21. 2007 BMW X3 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. 2007 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X3 | 1986 Renault 21 | |
| Make | BMW | Renault |
| Model | X3 | 21 |
| Year Released | 2007 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 215 HP | 175 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 480 Nm | 275 Nm |
| Torque RPM | 1750 RPM | 3000 RPM |
| Engine Compression Ratio | 17.0:1 | 8.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1765 kg | 1345 kg |
| Vehicle Length | 4570 mm | 4540 mm |
| Vehicle Width | 1680 mm | 1730 mm |
| Vehicle Height | 1860 mm | 1430 mm |
| Wheelbase Size | 2800 mm | 2670 mm |
