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Tesla delivered its first Tesla Semi electric trucks to customers and revealed details of its production version of the vehicle – delivering on a five-year-old promise.

Tesla started out by explaining why it is moving from making consumer electric vehicles to an electric class 8 truck. That’s pretty simple: Even if semi-trucks only account for about 1% of vehicles in the US, they account for about 20% of emissions.

Tesla reiterated that it can achieve a less-than-2 kWh-per-mile efficiency, which means that trucking companies can achieve up to $70,000 in fuel savings per year depending on their cost of electricity.

Tesla also unveiled several quality-of-life features for Tesla Semi drivers like an automatic suspension dump for easy latching to trailers, a cabin that you can stand in, and easy light checks for inspections. — Electrek