If the car is safe (checked every year), you know the rules (that are in the law) and behave safely (keep the rules), not much can happen.
Also 300 km/h is quite rare. 200 km/h is not.
It’s basically the same as with nuclear plants. They weren’t safe to run, because the rods were old and they couldn’t prove that storages are safe. And people voted for parties that support clean energy, especially doesn’t produce harmful waste.