Elon Musk Is Wrong About Claimed 400-Mile Tesla Model S Test: EPA

Illustration for article titled Elon Musk Is Wrong About Claimed 400-Mile Tesla Model S Test: EPA
Screenshot: Tesla

The Environmental Protection Agency has refuted claims made by Tesla CEO Elon Musk that a recent test should have resulted in a 400-mile range result for the Tesla Model S, but was limited by a user error on the part of the Agency.


This week’s first quarter Tesla investor call featuring Musk included a claim from the executive that the EPA’s recent 391-mile range result from testing an updated Tesla Model S Long Range Plus model should have actually resulted in the first-ever 400-mile EPA result. So what happened?


Here’s more from Roadshow, with an official response from the EPA:

According to the CEO, at some point during the testing process, someone left the keys inside the car and the door open overnight. The Model S entered a “waiting for driver” mode, which depleted 2% of the EV’s range, hence the sub-400-mile rating. Musk added that the company plans to retest the Model S with the EPA and is “confident” the test will produce a 400-mile car.

The automaker did not return Roadshow’s request for comment on the situation, but an EPA spokesperson said in a statement, “We can confirm that EPA tested the vehicle properly, the door was closed, and we are happy to discuss any technical issues with Tesla, as we do routinely with all automakers.”

A difference of nine miles ain’t such a big deal, but as Roadshow points out, competitors are catching up as Rivian, Lucid, and other EV startups claim range estimates on upcoming models should be well beyond the unbroken 400-mile benchmark. You can’t blame Musk for wanting to be the first.

It sounds the EPA wasn’t aware of the retest mentioned by Musk, at least according to their statement. Perhaps Musk just plans to do a retest, so we’ll see if it ever happens (and at that, if it happens again with the EPA or privately).

Share This Story

Get our newsletter


It should be very obvious in the testing documents. No way they just have a summarized result with no details for each step of the test.

“End of day, 50% and 200 miles... Start of next day 48%....”

My Model S siting in the garage is losing 2-3 miles per 24 hours while I’m not driving it. A 9 mile drop in 12-18 hours is almost as bad as letting sentry mode run.

I personally do not care about the 391 vs 400, but if their goal was 400, and they did everything to make it happen for the headlines, and then someone leaves a key in a the door open and its all gone to shit, well that’s just a little sad and funny at the same time.