I operate a pinewood derby race track for youth organizations. Recently, I was asked if I could run Hot Wheels on my track. It seems that this organization likes to let their young children to run a warm up event to let them feel involved. As it turns out, my track won't fit Hot Wheels. However, I recently found one Johnny Lightning model which fits quite well. My requirement is a wheel track of no more than 1 inch. What I need is a way to know what the wheel track of various 1/64 scale cars is so I might recommend them. Any help would be appreciated.