The built-in roll cage in the new-generation SU7 reduces the risk of passenger compartment deformation in extreme scenarios, enhancing occupant protection.

✓ Long-term Episode 221 · Question 4 2026-03-26

What is the purpose of the "built-in roll cage" in the new-generation Xiaomi SU7?

Official answer

All models of the new-generation Xiaomi SU7 feature built-in hot-expanded tubes made of 2200MPa Xiaomi ultra-high-strength steel between the A-pillar and C-pillar on both the left and right sides. Each side reaches a length of 2.56 meters, forming a "built-in roll cage." In extreme scenarios such as rear-ending a truck or rolling over, this structure can reduce the risk of passenger compartment deformation and enhance occupant protection capabilities.

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