It would have to be Cadillac.

Meh... I don't really see this as a problem. Hollywood has a hard-on for making all the bad guys in movies lately either Russian ex-military/mafia or ChiCom/Triad.

I had this as a kid:

1. Don't buy a new car. Head straight to the CPO lot.

This list is erroneous as C4 out ranks C5 and C6 which is not possible in any universe.