1997 Caterham C21 vs. 1975 Mazda 929
To start off, 1997 Caterham C21 is newer by 22 year(s). Which means there will be less support and parts availability for 1975 Mazda 929. In addition, the cost of maintenance, including insurance, on 1975 Mazda 929 would be higher. At 1,769 cc (4 cylinders), 1975 Mazda 929 is equipped with a bigger engine. In terms of performance, 1997 Caterham C21 (115 HP @ 6000 RPM) has 32 more horse power than 1975 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 1997 Caterham C21 should accelerate faster than 1975 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1975 Mazda 929 weights approximately 420 kg more than 1997 Caterham C21.
Let's talk about torque, 1997 Caterham C21 (145 Nm @ 3000 RPM) has 11 more torque (in Nm) than 1975 Mazda 929. (134 Nm @ 3000 RPM). This means 1997 Caterham C21 will have an easier job in driving up hills or pulling heavy equipment than 1975 Mazda 929.
Compare all specifications:
| 1997 Caterham C21 | 1975 Mazda 929 | |
| Make | Caterham | Mazda |
| Model | C21 | 929 |
| Year Released | 1997 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1587 cc | 1769 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 115 HP | 83 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 145 Nm | 134 Nm |
| Torque RPM | 3000 RPM | 3000 RPM |
| Engine Bore Size | 80 mm | 80.1 mm |
| Engine Stroke Size | 79 mm | 88 mm |
| Engine Compression Ratio | 10.5:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 650 kg | 1070 kg |
| Vehicle Length | 3810 mm | 4410 mm |
| Vehicle Width | 1590 mm | 1670 mm |
| Vehicle Height | 1060 mm | 1420 mm |
| Wheelbase Size | 2260 mm | 2520 mm |
