I really think it boils down to that some people value their own personal enjoyment over other people's safety. The sad truth is that you could absolutely enjoy vehicles like that but without endangering safety, by going to a race track. There's literally race days even for road-legal vehicles.
I think the better metric is the number of deaths per billion vehicle-km. In your metric most European countries have half the deaths than the US, but it's mostly explained by the fact that we drive less. I guess people had fewer cars and drove less in the 1930…
EDIT:
I found the stats: in 1930 you had 15.12 deaths per 100 million miles vehicle, in 2014 1.08. So the reduction is not 2.5x, but 15x!
Don't assume that everybody will.
I guess the question is where the line is drawn between sensible and "nanny-state" regulation.
first of all, a minivan can kill you doing 10mph.
second, cars with this much power (and more importantly, top speed), have been around for a long time. you can build an 8-second quarter mile car in your garage and drive it on the street.
more nanny-state nonsense. "think of the children".