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Musk sketched out the plan during the call. Tesla intends to build multiple small-scale retrofit facilities in cities with high HW3 concentrations — Los Angeles, San Francisco, Austin, and New York among the first — where technicians will tear out the old compute stack and install the full HW4 hardware suite. The company declined to estimate the retail cost but acknowledged it would be "substantial." Early leaks put the per-vehicle retrofit price in the $6,000 to $10,000 range.

To soften the blow, Tesla announced that HW3 vehicles will receive a "distilled" version of FSD called V14-lite, scheduled for rollout in late June 2026. The software will bring improved lane-keeping, better city-street handling, and what Musk described as "significantly smarter" behavior at intersections, but it will remain supervised — meaning drivers must keep their eyes on the road and hands near the wheel.

Owners Erupt — And Lawyers Circle

The reaction from Tesla owners was swift, furious, and in many cases organized. By Wednesday evening, two separate class action law firms had announced investigations into potential consumer fraud and deceptive trade practice claims. A Reddit thread titled "I paid $12,000 for FSD in 2020 and now Elon says 'sorry'" passed 40,000 upvotes within hours.

At least one state attorney general's office — California's — confirmed it is "closely reviewing" Tesla's disclosures to owners. California's Department of Motor Vehicles has been in litigation with Tesla since 2022 over alleged false advertising of Autopilot and FSD, and Wednesday's admission is likely to become a centerpiece exhibit.

For individual owners, the math is brutal. A Model 3 buyer who purchased the car in 2020 for $48,000 and added FSD for $10,000 has now watched the car's resale value collapse to roughly $18,000 — and learned that the feature they paid for requires either buying a new car or paying thousands more for a retrofit. "I bought the car specifically because Elon said it would drive itself," said Mark Sanders, a 54-year-old electrician in Phoenix who owns a 2021 Model Y. "Now he's telling me the path to what he promised is to buy another car. That's not a path. That's a sales pitch."

The Good News For Shareholders

The bad news for owners was not bad news for shareholders. Tesla's Q1 2026 profits came in 16 percent higher than the same quarter last year, and while revenue of $22.39 billion narrowly missed the $22.64 billion Wall Street expected, the market rewarded Musk's aggressive forward-looking investment plan. Tesla shares climbed 4.7 percent in after-hours trading.