I guess people trying to drive corollas and civics haven't tried/experienced emergency braking on such speeds that is more than 100 kmph. If they had done it, they would know that cars are not meant for insane speeds on public roads in term of stability.
If one is not careful for himself, at least he should be careful what damage he can do to his family.
IMO, in PK speed lock should be at 120 kmph.
Drive safe stay safe!