"Problems that old school companies have been solving for a century." In the end (current time), didn't they (Tesla) find a better way? I am truly ignorant he

"Problems that old school companies have been solving for a century." In the end (current time), didn't they (Tesla) find a better way? I am truly ignorant here, but based on what I have read, Teslas manufacturing process now is much more efficient/better than the standard GM/Ford, etc...