1979 Mazda 121 vs. 1981 Renault 9
To start off, 1981 Renault 9 is newer by 2 year(s). Which means there will be less support and parts availability for 1979 Mazda 121. In addition, the cost of maintenance, including insurance, on 1979 Mazda 121 would be higher. At 1,970 cc (4 cylinders), 1979 Mazda 121 is equipped with a bigger engine. In terms of performance, 1979 Mazda 121 (90 HP) has 23 more horse power than 1981 Renault 9. (67 HP). In normal driving conditions, 1979 Mazda 121 should accelerate faster than 1981 Renault 9. With that said, vehicle weight also plays an important factor in acceleration. 1979 Mazda 121 weights approximately 274 kg more than 1981 Renault 9. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1979 Mazda 121 (160 Nm @ 3000 RPM) has 50 more torque (in Nm) than 1981 Renault 9. (110 Nm @ 3000 RPM). This means 1979 Mazda 121 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 9.
Compare all specifications:
| 1979 Mazda 121 | 1981 Renault 9 | |
| Make | Mazda | Renault |
| Model | 121 | 9 |
| Year Released | 1979 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 1397 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 90 HP | 67 HP |
| Torque | 160 Nm | 110 Nm |
| Torque RPM | 3000 RPM | 3000 RPM |
| Engine Bore Size | 80 mm | 76 mm |
| Engine Stroke Size | 98 mm | 77 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1134 kg | 860 kg |
| Vehicle Length | 4510 mm | 4070 mm |
| Vehicle Width | 1690 mm | 1660 mm |
| Vehicle Height | 1350 mm | 1410 mm |
| Wheelbase Size | 2520 mm | 2490 mm |
