Tesla's Electric Cybercab is Certified as the Most Efficient EV Ever

Tesla's upcoming Cybercab "has been certified at 165 Wh/mi," reports Electrek — which makes it "the most efficient electric vehicle ever produced — by a wide margin."

The next most efficient EV on the market, the Lucid Air Pure, consumes 28% more energy per mile. Tesla VP of Vehicle Engineering Lars Moravy confirmed the figure, which represents a certified rating — not a marketing claim or internal target.

It's an impressive achievement, but it comes with a massive asterisk: Tesla accomplished this by building a tiny two-seat robotaxi with no steering wheel, no pedals, and a sub-50 kWh battery pack... Even Tesla's own Model 3 — one of the most efficient passenger EVs you can buy — needs nearly a third more energy to cover the same distance... Where the 165 Wh/mi figure genuinely matters is in the economics of running a robotaxi fleet. Energy cost per mile is one of the biggest operating expenses for any ride-hailing service, and the Cybercab's efficiency gives Tesla a structural cost advantage over competitors...

The small battery pack also means faster charging times and lower per-vehicle battery costs — both critical for fleet economics. Tesla has said the Cybercab
will cost $30,000, and the efficient powertrain is a big part of hitting that price target. Tesla confirmed Cybercab production has started at Giga Texas in April, though the ramp is expected to be slow initially. The company still hasn't solved unsupervised autonomous driving — the first steering wheel-less unit rolled off the line in February, but Tesla's supervised robotaxi fleet currently crashes at roughly four times the rate of human drivers.

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