1973 Mazda 929 vs. 1981 Renault 18
To start off, 1981 Renault 18 is newer by 8 year(s). Which means there will be less support and parts availability for 1973 Mazda 929. In addition, the cost of maintenance, including insurance, on 1973 Mazda 929 would be higher. At 2,068 cc (4 cylinders), 1981 Renault 18 is equipped with a bigger engine. In terms of performance, 1973 Mazda 929 (83 HP @ 5000 RPM) has 17 more horse power than 1981 Renault 18. (66 HP @ 4500 RPM). In normal driving conditions, 1973 Mazda 929 should accelerate faster than 1981 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 1973 Mazda 929 weights approximately 20 kg more than 1981 Renault 18. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1973 Mazda 929 (134 Nm @ 3000 RPM) has 10 more torque (in Nm) than 1981 Renault 18. (124 Nm @ 2250 RPM). This means 1973 Mazda 929 will have an easier job in driving up hills or pulling heavy equipment than 1981 Renault 18.
Compare all specifications:
| 1973 Mazda 929 | 1981 Renault 18 | |
| Make | Mazda | Renault |
| Model | 929 | 18 |
| Year Released | 1973 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1769 cc | 2068 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 83 HP | 66 HP |
| Engine RPM | 5000 RPM | 4500 RPM |
| Torque | 134 Nm | 124 Nm |
| Torque RPM | 3000 RPM | 2250 RPM |
| Engine Bore Size | 80 mm | 86.1 mm |
| Engine Stroke Size | 88 mm | 89 mm |
| Fuel Type | Gasoline | Diesel |
| Vehicle Weight | 1070 kg | 1050 kg |
| Vehicle Length | 4410 mm | 4410 mm |
| Vehicle Width | 1670 mm | 1710 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2520 mm | 2450 mm |
