Tesla Model 3 Completes Coast-to-Coast Drive on FSD v14 Lite

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Two drivers have achieved a major milestone during an ambitious road trip across North America, completing a diagonal coast-to-coast journey across the United States using Tesla’s Full Self-Driving software on older hardware.

Koby Pierce and his co-pilot, known online as Liam’s Dad, navigated a 2020 Tesla Model 3 Long Range from the southernmost buoy in Key West, Florida, to Cape Flattery, Washington. The journey spanned 4,255 miles (6,847 kilometres) and relied entirely on Tesla’s older Hardware 3 computing platform running the newly released v14 Lite software.

Remarkably, the high-mileage electric vehicle, which has over 175,000 miles on its original battery and drive units, managed the diagonal crossing with zero driver interventions.

“I’m extremely exited to announce that @LiamsDadTravel & I have successfully completed the first Coast to Coast (diagonally) on HW3 FSD v14 Lite!” Pierce shared on X, adding that the trip required “NO manual steering, braking, accelerator, or turn signal stalk inputs!”

The coast-to-coast drive is part of a larger 13,713-mile expedition called The Buoy to Bay. With the American crossing complete, the team is now heading north through British Columbia and the Yukon toward Fairbanks, Alaska. From there, they will tackle the ultimate challenge: the Dalton Highway. This remote, 494-mile gravel road leads to Prudhoe Bay at the top of the world, where fast-charging infrastructure is non-existent.

You can track the Tesla Model 3’s live telemetry as the team enters the remote northern wilderness. The remaining legs of the journey are being livestreamed directly to X and YouTube.