To others or yourself?
In the early 1990s SUVs had more risk than cars for a while due to rollover risk, but today SUVs are safer for it's own occupants than cars on average.
As for other people on the road, yes the added mass is dangerous. But the Rimac is SUV heavy too.
I'm mostly concerned with others. If you want to kill yourself - that's your life. But threatening other people should be strictly regulated.
And SUVs are more dangerous for many reasons, not only mass. For example "regular" cars hit you in your legs and you roll over the car which dissipates some of the energy and spreads the rest over time better. Accelerations experienced can be several times lower if you spread the collision over time. Also you're less likely to go under the car than if a SUV hit you.
> today SUVs are safer for it's own occupants than cars on average
in a crash - possibly (I've seen studies both ways, but they did started to turn more in favor recently). But you're more likely to have a crash in SUV in the first place, because of worse visibility, breaking and turning performance, as well as mental factors (I'm higher and safer, I can take more risks).
What makes you think that? This thing generates enough kinetic energy in the hands of an idiot to far exceed most SUVs, and it weighs 4700lbs anyway, there are SUVs that are lighter.
As for other people on the road, yes the added mass is dangerous. But the Rimac is SUV heavy too.