The base model 3 starts at 48,490. They were supposed to have a $35K version. I think they sold one to a guy once at that price with bike tires and folding chairs as seats.
They had a $35k version, it was just off menu as recently as early 2020[0]. But it was discontinued around November of 2020[1].
[0]: https://www.greencarreports.com/news/1127490_the-35k-tesla-m...
[1]: https://www.theverge.com/2020/11/16/21569524/tesla-model-3-3...