In "low," the car shifted between first and second gears.
In "high," the car shifted between first, third and fourth gears.
An automatic transmission's main focus is smooth shifting between gears.
This is because the close-ratio transmission has less of a progression between gears.
This allows shifting between gears without the use of the clutch.
With four-speed automatics, the difference between first and fourth gears is typically a factor of 4 to 1.
Throws between gears are too long, and a vagueness forces the driver to hunt for a gear or risk missing it.
On upgrades, the system reduces the hunting between gears that is common to automatics.
Automatic transmission is now included but has a 0.5 second stall time between changing gears.
It had no synchromesh and switching between gears without excessive noise was a challenge to the driver.