We don't have a lot of experience with go-carts in Thailand, but thought almost 350 baht for 10 minutes for a single rider was hight, and over 500 baht for 10 minutes for a double cart. My husband (American) and 6'4" did not fit in the double cart so it made it hard with 2 kids under the driving age to get a turn. In their defense they let us split the time and I drove both are boys for 5 minutes each. It is very hygienic (hair nets under helmets, require socks for the shoes). Be advised you must have closed toe shoes to drive, or you will have to use their shoes and purchase socks if you don't already have some.