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✓ Long-term Episode 77 · Question 1

The Xiaomi SU7 Ultra currently has a top speed of 350km/h. Why is it called 'design top speed'?

Official answer

Design Top Speed: Refers to the highest speed the vehicle can reach when track conditions are satisfied and the vehicle is in its optimal state.

The certified top speed results are limited by test tracks, and testing standards vary by region. Therefore, the certified top speed results in different regions globally may differ, hence the term "design top speed." At the official launch, we will also release more product information about the Xiaomi SU7 Ultra.

Certifying different top speeds under different test conditions is a common practice in the industry. For example, some global models from overseas brands have different certified top speeds in China compared to some overseas markets, but the actual capability of the vehicle remains consistent.

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I saw some real photos and videos of Xiaomi SU7 Ultra where the tire sidewall has an "R" marking. Can such tires support a top speed of 350km/h?

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