2005 Ford Explorer vs. 1991 Renault 21
To start off, 2005 Ford Explorer is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Renault 21. In addition, the cost of maintenance, including insurance, on 1991 Renault 21 would be higher. At 4,014 cc (6 cylinders), 2005 Ford Explorer is equipped with a bigger engine. In terms of performance, 2005 Ford Explorer (210 HP @ 5500 RPM) has 135 more horse power than 1991 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 2005 Ford Explorer should accelerate faster than 1991 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Explorer weights approximately 260 kg more than 1991 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Ford Explorer (330 Nm) has 201 more torque (in Nm) than 1991 Renault 21. (129 Nm). This means 2005 Ford Explorer will have an easier job in driving up hills or pulling heavy equipment than 1991 Renault 21.
Compare all specifications:
| 2005 Ford Explorer | 1991 Renault 21 | |
| Make | Ford | Renault |
| Model | Explorer | 21 |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4014 cc | 1721 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 210 HP | 75 HP |
| Engine RPM | 5500 RPM | 5000 RPM |
| Torque | 330 Nm | 129 Nm |
| Engine Bore Size | 100 mm | 81 mm |
| Engine Stroke Size | 84 mm | 83.5 mm |
| Engine Compression Ratio | 9.7:1 | 9.2:1 |
| Vehicle Weight | 1280 kg | 1020 kg |
| Vehicle Length | 4820 mm | 4650 mm |
| Vehicle Width | 1840 mm | 1720 mm |
| Vehicle Height | 1820 mm | 1430 mm |
| Wheelbase Size | 2870 mm | 2820 mm |
