There's almost no rust on that car...just a bit on the rear carrier. The obvious brown material is merely dirt stuck to the undercoating.
Nutari, again, the "frame rails" are merely floor pan supports. They are not the frame and not as structural as you might think. I've seen Miatas with those supports nearly crushed flat. They're not strong enough to be used as a jack point.
All in all, everything is fine looking at the bottom.
I agree, it doesn't look too much worse than mine.
Thanks guys.
