PonyRider, Tesla are still ahead in the electric drivetrains, their new 4680 batteries are on the way, they are implementing massive castings and then structural battery packs. They have the benefit of SpaceX materials technology. Below is a comparison of the Model 3 structure compared to the updated Model Y structure being produced in the new Texas factory. They are a moving target for the legacy manufacturers who have displayed too much 'inertia'.