One Cybertruck owner watched as thousands of dollars capsized off the coast of a California harbor on Monday after attempting to launch a jetski from his Tesla-built car ...

Elon Musk tweeted in 2022 that the Cybertruck "will be waterproof enough to serve briefly as a boat." But a Cybertruck did not float in Ventura Harbor.

The driver told Shevitz that he meant to put the vehicle in drive after launching a Jet Ski but accidentally threw it in reverse, causing it to slide down the ramp and into the water. Shevitz ...