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Tesla Model S has highway range of 320 miles on flat terrain with perfect weather.

https://www.caranddriver.com/news/a36302930/tesla-model-s-lo...

According to the Tesla web page today the long range model has 405 miles EPA estimated range. Its possible that the article you posted is out of date.

EPA average speed test is 27.74MPH. Not very useful.

https://fueleconomy.gov/feg/fe_test_schedules.shtml

Isn't that for the city driving test? I am not sure which metric Tesla is using, highway or city, the website isn't clear, but at 30 MPH, on flat terrain and with the AC off, I would expect considerably more than 400 miles for their long range model.

Tesla is using all 5 tests.

https://www.caranddriver.com/features/a33824052/adjustment-f...

Thanks, I did not know that.

It depends on the speed (that was 75 mph) and other factors - I would bet that car could go 700 miles with the right tires at a pretty slow pace.

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