1973 Fiat 128 vs. 1979 Mazda 121
To start off, 1979 Mazda 121 is newer by 6 year(s). Which means there will be less support and parts availability for 1973 Fiat 128. In addition, the cost of maintenance, including insurance, on 1973 Fiat 128 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 @ 4800 RPM) has 27 more horse power than 1973 Fiat 128. (63 HP @ 6000 RPM) In normal driving conditions, 1979 Mazda 121 should accelerate faster than 1973 Fiat 128. With that said, vehicle weight also plays an important factor in acceleration. 1979 Mazda 121 weights approximately 314 kg more than 1973 Fiat 128. 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 77 more torque (in Nm) than 1973 Fiat 128. (83 Nm @ 4400 RPM). This means 1979 Mazda 121 will have an easier job in driving up hills or pulling heavy equipment than 1973 Fiat 128.
Compare all specifications:
| 1973 Fiat 128 | 1979 Mazda 121 | |
| Make | Fiat | Mazda |
| Model | 128 | 121 |
| Year Released | 1973 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 1116 cc | 1970 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 63 HP | 90 HP |
| Engine RPM | 6000 RPM | 4800 RPM |
| Torque | 83 Nm | 160 Nm |
| Torque RPM | 4400 RPM | 3000 RPM |
| Engine Bore Size | 80 mm | 80 mm |
| Engine Stroke Size | 55.5 mm | 98 mm |
| Engine Compression Ratio | 8.8:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 4 seats |
| Vehicle Weight | 820 kg | 1134 kg |
| Vehicle Length | 3820 mm | 4510 mm |
| Vehicle Width | 1570 mm | 1690 mm |
| Vehicle Height | 1320 mm | 1350 mm |
| Wheelbase Size | 2230 mm | 2520 mm |
