For what I understood reading the article is the automaker who make the test. Then they can use the epa algorithm, or their own. Tesla did the latter. EPA asked them to reduce of 3% their results. Other brands ? They use EPA algorithm. Most have the correct result. Except for the Hyundai Kona. They underestimated their range.
For what I understood reading the article is the automaker who make the test. Then they can use the epa algorithm, or their own. Tesla did the latter. EPA asked them to reduce of 3% their results. Other brands ? They use EPA algorithm. Most have the correct result. Except for the Hyundai Kona. They underestimated their range.