Due to the high amount of both neck and back injuries. We suggest a minimum head clearance of 6 feet for entering and exiting an autonomous vehicle. Eliminate bending, stooping, and hunching for the majority of riders. These actions can cause everything from mild discomfort to extreme pain. Doing so would meet the needs of the majority of riders. This is also extremely important to those who may utilize a wheelchair to enter and exit the vehicle. In addition, high head clearance while maneuvering the vehicle interior and while seated inside the vehicle.