Tesla Opens Sources Model S/X: Engineering Benefits vs. Costs—Who Implements First?

Let's look at some data from practical feedback after Roadster went open source. According to third-party community statistics, after Tesla released the full design documentation for the Roadster in November 2023, the number of derivative modification repositories on GitHub exceeded 200 within three months. Of these, 30% focused on software and hardware optimization for the Battery Management System (BMS), and 15% attempted to replicate the chassis structure. However, 65% of the repositories remained stuck at the "document reading" stage, with less than 5% completing hardware prototype validation. The reason is simple: the Roadster is a 2008 product, its supply chain has long since become obsolete, so the open-source blueprints can only serve as educational references and cannot be directly reproduced.