Actually… Believe it or not… they installed this ludacris HEPA filter on the intake of my car for the model year I bought.
I’m not joking, the thing is about a foot tall in about 3 feet wide.
… And the car has a “biohazard” mode.
Now, I thought this was the worst fucking waste of money I’ve ever heard of… and then one day I got behind a tractor trailer that had the blackest smoke I’ve ever seen… like a locomotive burning oil. Turned it on, and to my surprise the smell and all the nasty crap just disappeared from inside the cabin in about 10 seconds... humph.
Which, of course doesn’t change the fact that your Mustang is still two seconds slower than my car at the quarter-mile.