From Wikipedia: > A semi-automatic transmission ... is an automobile transmission that does not change gears automatically, but rather facilitates manual gear

From Wikipedia: > A semi-automatic transmission ... is an automobile transmission that does not change gears automatically, but rather facilitates manual gear changes by dispensing with the need to press a clutch pedal at the same time as changing gears. I wasn't talking about clutch-and-stick vs. push-a-button. I was talking about controlling which gear is on vs. letting the car guess alone. I've never heard about race cars where the driver does not decide himself which gear is on at which moment; if you have, thanks for letting me learn something new.