In an article on the status of cars, Morgan Meis elaborates.

Later, in his own, much different version of fascism, a fascism of resistance to the modern world in the name of a more authentic (poetic, “peasanty”) relationship to the earth, Martin Heidegger talked of the automobile as something that "chews up kilometers." He was not impressed by this chewing. He wanted a return to slowness, one in which our capacity to dwell poetically (sic) would give us the "power to let earth and heaven, divinities and mortals enter in simple oneness into things". He saw the automobile as a threat to the basic structure of human experience.

Sic in the original; must not be in the spellchecker. I've never come across the "chews up kilometers", nor kilometres, quote, anywhere; perhaps its poetic license, of a different version.  ¶ 7:34 AM