Hey-
Our kids are almost the same size- and we've only been able to sit three max in a HM car. The kids actually want to ride by themselves- but the three of them together take up the whole thing.
I can't believe you haven't ridden this yet.
What happened to the Rock and Roll hand gesture dude's courage?
LOL- the first time I rode this was on my first trip to MK- I remember it very very well- I was 2 years old.
He can do it.
And if he can't --- send him and dad out to get some popcorn at the cart right outside the entrance while you and the little one tackle it.
Jo
PS--- has he ridden TOT?????? It is NOTHING like TOT.
TOT is much more scarier than HM. (As far as the Ghost scenes and such-).