External differences:
* Gear selector:
* Automatic: The selector is usually labeled ‘P’, ‘R’, ‘N’, ‘D’, ‘(+)’/’-‘, ‘L’.
* Mechanics: The selector has a gear shift pattern with numbers indicating the gears.
* Pedals:
* Automatic: Two pedals (gas and brake)
* Mechanics: Three pedals (gas, brake, clutch)
*Handbrake lever:
* Automatic: The handbrake lever is usually located to the left of the driver.
* Mechanics: The handbrake lever is usually located between the front seats.
Internal differences:
* Gearbox:
* Automatic: Torque converter or CVT gearbox.
* Mechanics: Manual gearbox with gears.
* Clutch:
* Automatic: Typically torque converter or multi-plate wet clutch.
* Mechanics: Typically single disc dry clutch.
* Control:
* Automatic: Selector and gear shifters.
* Mechanics: Selector lever and clutch pedal.
Additional differences:
* Diagnostic codes:
* Automatic: Automatic transmissions may have a special diagnostic connector for reading error codes.
* Liquid:
* Automatic: Typically requires Automatic Transmission Fluid (ATF).
* Mechanics: Usually no special fluid required.
* Oil change:
* Automatic: Periodic oil change interval.
* Mechanics: No regular oil changes required.