Shouldnt be a problem considering it takes 20,000 lbs of gas to get a 30 mpg vehicle to 100,000 miles and we have relatively no issue finding that material. Material prices on EV batteries could 4x and auto cost on new EVs would be affected less than gas swinging 10% on any ICE

Reducing material consumption by 10s of thousands of lbs should be easier than you think. Especially considering that material can be recaptured, repurposed, and recycled in the future. Unlike oil and gas