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Edmunds tests Tesla’s range

Recently, the Edmunds test team released the results of an electric vehicle test in its real world. Significantly, each Tesla team tested in 2020 did not meet the EPA range estimate. Almost all other Edmunds EVs tested met or exceeded those estimates.

As a result, as you can probably guess, some of the feathers in Tesla’s headquarters were impoverished.


The poor results prompted the automaker to lend a helping hand to Edmunds’s test team. Tesla engineers have been challenging our numbers, claiming that by stopping EV range testing at our zero mile instead of squeezing until the battery is depleted, we are underestimating the true range of their cars.

Tesla said its cars have a safety buffer that ensures drivers continue to operate, even when the range is zero. And when you do this buffer factor, Tesla claims that it will allow their vehicles to meet EPA range estimates, which are usually measured when the battery is fully consumed.

It was a challenge we had been waiting for in Edmunds, so we hired a 7.5-mile-long closed oval at a non-working automaker shelter in the California Mojave Desert. This facility allowed us to run five power plants safely until their batteries ran out. Tesla provided us with the Model 3 Long Range for testing. We list the Edmunds Model 3 Standard Range Plus և Model Y Performance used in our initial range tests, plus two non-Tesla models for comparison purposes. Ford Mustang Mach-E և Volkswagen ID: 4. They were also provided by their manufacturers.


Much of a car distance calculator is a factor in your recent driving habits when forecasting the rest of the range. Edmunds editors needed to drive in the same way to normalize distance and ensure a level playing field.

On the test track, we drove five EVs at a total highway speed of 65 mph, with automatic climate control at 72 degrees, audio off, no accessories on, drivers rotating for an hour until the batteries ran out. When each vehicle’s distance estimate shows zero miles, we measured how far it could go before it came to a complete stop.

The miles went through zero

Ford Mustang Mach-E extended range – 7.3 miles

Tesla Model Y Performance – 12.6 miles

Volkswagen ID.4. 12.9 miles

Tesla Model 3 Standard Range Plus – 17.6 miles

Tesla Model 3 Long Range – 25.9 miles

Notice how the buffer can be different even within the same brand. The Model 3 Long Range was twice as large as the Model Y. Moreover, there was no indication of how far you could go, as all vehicles were simply reading the remaining zero miles. As far as we knew, cars could stop at any time.


We conducted a control test on the Edmunds EV range using the Model 3 Long Range և Model Y Performance, ending their battery life on public roads. The Model Y went 11 miles from zero and the Model 3 an additional 17.5 miles. Both were less than the buffers we experienced on the test track.

We asked Tesla about this discrepancy in the reserve domain. The carmaker said the buffer was based on a combination of recent past conditions – instantaneous conditions, in fact, weather – location fluctuations, which is why “the buffer can not always be precisely defined for the number.”


Some Tesla would be able to meet their EPA scores in the Edmunds real-world range test if we included their backup battery range, or the distance we covered in the mile beyond zero.

But even in this scenario, there were requirements, such as conservative driving in temperate climates ելը Tesla’s maximum battery life, although Tesla recommends this only for long distance travel.

Most of the Tesla we have tested so far, four out of six, do not meet their EPA ratings, which even allow for the creation of a security buffer. Moreover, almost every EV Edmunds has tested satisfactory or exceeded EPA ratings without the need to include their security buffers.

Prospective Tesla buyers should know that in order to use the full range of advertised products, they need to feel comfortable crossing the zero mile mark. Not only is this risky, it also requires the owner to deeply discharge the battery, which is not recommended for long-term battery health.

EDMUNDS SAYS. The Edmunds EV range test is not intended to be the final word in the car series, but rather a real addition to the laboratory-based EPA test. We will continue to test this zero as we will never advise customers to rely on an unpredictable buffer range.


This story was reported to the Associated Press by the Edmunds automobile website. Ronald Montoya is Edmunds Editor-in-Chief, Consumer Consulting. Twitter: @ ronald_montoya8.

Related links:

Testing Tesla Range Anxiety

Why do electric vehicle ranges differ from EPA estimates?

Edmunds best electric cars of 2021 և 2022

Electric car range և consumption


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