I don't know about Tesla's, but my Leaf (second one I have owned) has shitty low rolling resistance tires (Ecopias) that are meant to improve range. Low rolling resistance is a tire industry euphemism for poor traction. You also are supposed to keep very inflated for better range performance. I know they are firmer than regular tires engineered for traction. I am guessing they wear out faster as a result (although super sticky traction tires also wear out fast - the P-Zeros on my 7 Series BMW were only rated for 20k miles).