The range estimates use different test procedures. BMW's quoted range uses the WLTP test procedure. China's CLTC test procedure is much more generous.

As noted in the article:

> "The Seal 08’s claimed 1,000+ km CLTC range translates to roughly 620+ miles — though real-world figures under EPA or WLTP testing would be lower. For reference, the recently updated Mercedes-Benz EQS 450+ claims 926 km under WLTP (575 miles) with its new 800V architecture and 118 kWh battery."

To compare the range properly you need to do a real world test of the vehicles on the same circuit in the same conditions.

What's your spreadsheet's coefficient for emotions like fun? BMW doesn't sell cars so much as they sell a brand. It's an emotional play for buyers to need "The Ultimate Driving Machine™."