"We haven't had the chance to enjoy the pull back motion of a race car since Hot Wheels. So, when I stumbled across this item it was a must have. My son LOVED it. He figured out what it should do just by looking at the box; but, really got a kick out.of building something that had movies.g action that he enjoy. The robot time us are a little boring for him right now; so, this was a well deserved treat for the little boy whose on the verge f becoming a young man."