So... why did the Tesla decide to make the Model 3 out of steel and not aluminium?
I read many threads of high cost repairs of Model S' body panel damage.
1)Musk has said Model 3 will not be 100% aluminum primarily because of cost to buy the aluminum and cost to manufacture the aluminum sheets into finished goods. Model 3 could be 5% aluminum or 95% aluminum. They are also taking sales pitches by carbon fiber/plastics manufactures.
Or this could be a negotiating tactic with Alcoa to get their price down or risk losing the business.
2) Partially supply and demand issue. Not many certified aluminum body repair technicians and even fewer Tesla certified technicians. Most body shops have techs with decades experiencing working on steel panels every day. Even the Tesla certified guys get to repair one Tesla a month?
In the near future, repairing aluminum and Teslas in particular will just be standard industry know how. Right now body shops have to raise prices to justify sending techs to school and buying the tools to repair Teslas ( complete tools,including frame machine,to repair Teslas cost a body shop ~ $100k.)