1978 Mazda 121 vs. 1978 Mazda RX-3
To start off, both 1978 Mazda 121 and 1978 Mazda RX-3 were released in the same year (1978). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,970 cc (4 cylinders), 1978 Mazda 121 is equipped with a bigger engine. In terms of performance, 1978 Mazda RX-3 (100 HP @ 7000 RPM) has 14 more horse power than 1978 Mazda 121. (86 HP @ 4800 RPM) In normal driving conditions, 1978 Mazda RX-3 should accelerate faster than 1978 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mazda 121 weights approximately 280 kg more than 1978 Mazda RX-3.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1978 Mazda 121 (160 Nm @ 3000 RPM) has 25 more torque (in Nm) than 1978 Mazda RX-3. (135 Nm @ 4000 RPM). This means 1978 Mazda 121 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda RX-3.
Compare all specifications:
| 1978 Mazda 121 | 1978 Mazda RX-3 | |
| Make | Mazda | Mazda |
| Model | 121 | RX-3 |
| Year Released | 1978 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 1963 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 86 HP | 100 HP |
| Engine RPM | 4800 RPM | 7000 RPM |
| Torque | 160 Nm | 135 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1130 kg | 850 kg |
| Vehicle Length | 4510 mm | 4090 mm |
| Vehicle Width | 1690 mm | 1600 mm |
| Vehicle Height | 1350 mm | 1380 mm |
| Wheelbase Size | 2520 mm | 2320 mm |
