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You'd need to ensure every electrical connection is in a waterproof location which I'm pretty sure is not a thing for any standard car manufacturing. Cabins are also rarely watertight.

AFAIK your best bet is a diesel with a snorkel, and hope things have dried off before you need to restart the engine.

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Rivan's R1T and R1S have a water fording height of ~43", standard: - https://rivian.com/support/article/what-is-the-water-fording...
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If cabins are water tight you risk carbon monoxide poisoning
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Carbon monoxide... in an EV?
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Are EVs typically "sealed" by default? If not, how is going through the effort to "seal" an EV different than installing snorkels for ICE cars?
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Some are more sealed than others, such as Rivian's R1T and R1S which have a water fording height of ~43": https://rivian.com/support/article/what-is-the-water-fording...
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