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Firmware Leaks Outline Tesla’s Budget Model Y ‘E41’ With Q4 Availability Target

Firmware findings point to deep feature cuts to lower build costs reportedly by roughly 20% versus today’s Model Y.

Overview

  • Firmware sleuth GreenTheOnly reports extensive deletions such as the glass roof, ambient lighting, power-folding mirrors, puddle lamps, the second-row display, and the Airwave console feature.
  • Other changes cited include a fiberglass headliner, single‑axis power seat controls, simplified 18‑inch wheels, a downgraded suspension, and removal of the reversing‑camera heater.
  • The variant is said to get an E41‑specific front fascia and offer rear‑wheel‑drive and all‑wheel‑drive trims with special motor configurations, with a Performance fascia update reportedly planned alongside.
  • Tesla’s VP of engineering has signaled the more affordable model will be available for everyone in Q4, and prior firmware observations suggest prototypes may already be built on standard lines.
  • Reuters previously reported a manufacturing cost reduction of at least about 20%, while some reported deletions such as a dedicated TPMS raise regulatory questions and Tesla has not confirmed final specs or pricing.