Musk: Silver Cybercab With Smaller 40 kWh Battery Is Coming

The Cybercab is getting a smaller battery and a new color. Elon Musk said on X that “there are efficiency improvements coming that will allow for a 40kWh Cybercab pack,” adding that Tesla “will make this in liquid silver, so the colors are not too monotonous” (via @SawyerMerritt).

Musk didn’t say when this updated Cybercab would hit the streets.

A Smaller 40 kWh Pack

Today’s Cybercab uses a 47.6 kWh battery pack with Tesla’s dry-cathode 4680 cells. It’s already one of the most efficient cars ever made, at just over 6 miles per kWh, giving it about 293 miles of EPA-adjusted range.

Moving to a 40 kWh pack would make the battery about 16% smaller. Musk didn’t share range figures for the new version, but the efficiency improvements should mean it won’t lose much range, if any.

A smaller battery also means a lighter and cheaper car. The current Cybercab weighs 3,113 lbs, and a lighter pack could push it under 3,000 lbs. Tesla already left room in the pack for cheaper LFP cells, which Munro Live’s recent Cybercab teardown revealed, along with modules that can be swapped individually.

Liquid Silver Joins Gold

Every Cybercab so far has been gold. Tesla doesn’t paint the Cybercab. Instead, it colors the body panels during molding using reaction injection molding, which mixes the color into the plastic before it’s injected. That’s what gives today’s Cybercabs their glossy gold finish, so the liquid silver version will likely have a similar shine.

@SawyerMerritt / X

@SawyerMerritt / X

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Adding a second color should also make it easier for riders to tell Cybercabs apart, along with the RGB light bar on the nose that shows which car is yours.

More Cybercabs on the Way

Tesla is already working to build more Cybercabs. Giga Texas is reportedly adding a night shift to double production, and Tesla will end Cybertruck production in mid-2027 to free up even more space for the Cybercab.

With Cybercab rides set to expand beyond Austin this month and the first customer deliveries targeted by the end of the year, the silver Cybercab could start showing up on the road sometime in 2027.