but what if a car takes 6 squares and two of the squares have a minute amount of car in them... do you need to click it?

Usually yes, at least that's how I interpret it. So far, I have not been identified as a bot.

this is obviously wrong, for reason I already gave. many times you can click one or two boxes, even though more "correct" boxes might exist. I dont want to click more than needed, thats wasted time. Although to be fair my method is probably slower overall.