I don't think Tesla needs to license her design as there is no trademark or patent. They can start manufacturing mini-pickups any time they want to. They probably aren't because the market for small electric pickups with miniature beds is a small one. The direction they are going seems like the right one to me; big, powerful, featured, luxurious vehicles that absolutely out-class ICE vehicles and leave us wondering why we spent a century going the wrong way, is the correct market to address. Musk being a dick driving around LA in his hulking machine is also correct and brilliant marketing.