I never heard of one being hit by a car - I think they're too smart for that.

It happens frequently enough [1] [2]. Both of those are in areas where the cats aren’t supposed to exist!

I'd say jaguars, which do neither, and occasionally come in a black variant.

Yep, the article says that the DNA matched a leopard

[1] https://m.startribune.com/cougar-spotted-in-minneapolis-kill...

[2] https://kanecountyconnects.com/article/MountainLion-KaneCoun...