I see several posts about crawling out the window. I hope to avoid that with my new enclosed trailer with a driver side escape door. I noticed many trailers have the bottom of that about 11.5 to 12 inches off the floor, and some car doors are lower. My United trailer has the escape door 9.5 inches off the floor, so my next race car needs to clear that. My previous Dart would, Just to clarify, my new trailer escape door is 9.5 inches off the floor with the trailer fender 7.75 off the floor and 1.75 for the escape door frame.
Then there are
tube chassis racers that take off the drivers door and hang it on the wall before pulling into the trailer.