That's because they are just starting out, and are still designing a lot of things from scratch. Musk had to import two gigantic aluminium presses to stamp the

That's because they are just starting out, and are still designing a lot of things from scratch. Musk had to import two gigantic aluminium presses to stamp the car bodies, and Tesla was suffering a lot of ill fitting body panels initially. It's amazing what they've accomplished so quickly, but it's still early days. Building these at the scale of GM, I can definitely imagine putting an electric one together with less work than a gasoline car with an automatic transmission.