Sina Science and Technology News on the morning of March 3, it was reported that on this Wednesday, local time in the United States, Musk said in his reply to his fans' tweets that it was meaningless to have a high range of electric vehicles. Musk wrote: "As early as 12 months ago, we could have produced the Model S with a range of 900km, but in my opinion, that would make the product worse, because in 99.9% of the cases, you would carry extra weight batteries, which would make acceleration, handling and efficiency worse. Even if we had a range of 640km, it would also exceed the needs of almost everyone."