I thought about that after I posted. Bicyclist's helmet? 5-point seatbelt? Sometimes when I'm driving on the freeway I wear a neck brace to prevent 'whiplash', let alone impact. Race car drivers call that a
Head and Neck Restraint
The Edison 2 people talk about the safety feature of a break-away open-wheel design. It really shines in the offset head-on collision.