* Has three forward gears and one reverse gear.
* Is typically found in older vehicles.
* Is less efficient than a four-speed transmission.
* Shifts gears at higher RPMs, which can result in reduced fuel economy.
Four-speed transmission:
* Has four forward gears and one reverse gear.
* Is typically found in newer vehicles.
* Is more efficient than a three-speed transmission.
* Shifts gears at lower RPMs, which can result in improved fuel economy.
* Provides better acceleration and performance.
Here is a table that summarizes the key differences between a three-speed and four-speed Toyota Tercel transmission:
| Feature | Three-speed transmission | Four-speed transmission |
|---|---|---|
| Number of forward gears | 3 | 4 |
| Number of reverse gears | 1 | 1 |
| Efficiency | Less efficient | More efficient |
| Shifting RPMs | Higher | Lower |
| Fuel economy | Reduced | Improved |
| Acceleration and performance | Worse | Better |
