My son is 5 and 43" tall -- will he be able to drive his own cart on the kids track? Can he ride with and adult on the adult track? Essentially, we need to know if there will be enough for him to do there or if we need to wait a year or two.

There is a separate kids track and a child over 40 is allowed. My son who is 4 drove a couple weeks back

There should be height requirements listed on the site. I found mine by looking at the birthday packages

I don't know about the driving but there is plenty of arcade games there that he can play. You will not be bored at any moment it's unbelievable.