I suggest before buying anything, to take him to ur local indoor track and see what catches his eye. If he decides he wants a buggy, then he can do his homework and figure out which buggy he wants, same for stadium truck or shortcourse. $150 isnt going to get hou much, so be prepared to work out a deal with him to do chores etc to boost the budget. Often the track will have some used stuff on consignment in the counter displays. If he decides he wants to be ome a racer, he's going to want a capable racer. If he doesnt care about raci and just wants something to run up and down the street (will get old fast and will either lose interest or want to make his way to a track) then like others have said, a Slash would be a good starting point but he will outgrow it's capabilities pretty quickly in stock form if he gets into racing.