[gamblor956]

Panasonic and LG also make batteries for VW...

Note that Samsung does not make batteries for Tesla's vhicles, only its stationary products like the powerwall. This is the same for LG outside of the Chinese market.

Additionally, Tesla's battery factory is actually Panasonic's battery factory. Panasonic is the primary partner in that joint venture.

Tesla still has the same dependence on external parties as VW, they were just first to the ball and have contractual priority on production capacity existing or planned at the time the contracts were signed.