Leftover Vanity Plates Of The Month

On a Smart car:  BGNUF42.  So at least 42 owners are bragging their car is big enough.

IEDIT4U.  Because that's how producers hire people--they pull them over and ask them.

RRRAW.  I don't cccare.

HAUNTD M.  I'd rather live in a haunted mansion than drive that cheap Civic.

K DSIGNS. I'm guessing if I Google this I'll find a commercial site, but I'm not gonna do it.

HRMONY.  My guess is there's a MLODY nearby.