the answer to the saftey question is, yes. ALL cars must conform to current saftey standards for that class to compete i.e, blower bags, trans blankets, bottom end containment devices(diaper or trays), driver saftey equipmet, etc.. cacklefest cars do not fall under competiton regulations, as they do not compete.
spectators were seriously injured, even killed. still happens today. like the wheel at pheonix.