Nothing "implied" that she was - she just - was. It's just not appropriate to link "driving ability" with race, nation of origin, sex, age, or whatever. But people will spew these things out sometimes. Just leave it at that - the world is full of bigots, you've noted that she is one, and there's not much more that needs to be said about it.
Incidentally, there is no correlation between "racism/bigotry" and "being dumb." Some very smart people hold some very intolerant ideas. You can dismiss her as intolerant, thoughtless, rude, inconsiderate, racist, etc., etc., but from this you cannot conclude that she is also "dumb."
Goal 1 - break 200 (46 pounds lost)**DONE**
Goal 2 - leave obesity behind (BMI 29.9, at 185#) **DONE**
Goal 3 - BMI = Normal (154# or less)
| current weight: 174.0