1991 Renault 21 vs. 1966 Renault 10
To start off, 1991 Renault 21 is newer by 25 year(s). Which means there will be less support and parts availability for 1966 Renault 10. In addition, the cost of maintenance, including insurance, on 1966 Renault 10 would be higher. At 1,721 cc (4 cylinders), 1991 Renault 21 is equipped with a bigger engine. In terms of performance, 1991 Renault 21 (75 HP @ 5000 RPM) has 33 more horse power than 1966 Renault 10. (42 HP @ 4600 RPM). In normal driving conditions, 1991 Renault 21 should accelerate faster than 1966 Renault 10. With that said, vehicle weight also plays an important factor in acceleration. 1991 Renault 21 weights approximately 175 kg more than 1966 Renault 10. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1966 Renault 10 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1966 Renault 10. However, in wet, icy, snow, or gravel driving conditions, 1991 Renault 21, being front wheel drive (FWD), will offer much better control with better grip. 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, 1991 Renault 21 (129 Nm @ 3250 RPM) has 52 more torque (in Nm) than 1966 Renault 10. (77 Nm @ 3000 RPM). This means 1991 Renault 21 will have an easier job in driving up hills or pulling heavy equipment than 1966 Renault 10.
Compare all specifications:
| 1991 Renault 21 | 1966 Renault 10 | |
| Make | Renault | Renault |
| Model | 21 | 10 |
| Year Released | 1991 | 1966 |
| Engine Position | Front | Rear |
| Engine Size | 1721 cc | 1108 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 75 HP | 42 HP |
| Engine RPM | 5000 RPM | 4600 RPM |
| Torque | 129 Nm | 77 Nm |
| Torque RPM | 3250 RPM | 3000 RPM |
| Engine Bore Size | 81.1 mm | 70 mm |
| Engine Stroke Size | 83.5 mm | 72 mm |
| Engine Compression Ratio | 9.2:1 | 8.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 955 kg | 780 kg |
| Vehicle Length | 4470 mm | 4200 mm |
| Vehicle Width | 1730 mm | 1530 mm |
| Vehicle Height | 1430 mm | 1410 mm |
| Wheelbase Size | 2550 mm | 2280 mm |
| Fuel Tank Capacity | 55 L | 38 L |
