we have flying cars....... i managed to get it 4 foot in the air at least once a meeting
robots that do chores.. microwaves. dish washers. them welders that put cars together. theres loads robots these days.
and when the cars get lighter they will drop the legal limit. but you will always have to add weight, the race bodys are not going to set the minimum weight for the lightest car availalable. milled out etc
if that makes any sense at all.