// DATA GAP — REAL-WORLD RANGE
The 902 km CLTC figure is a real standardized test result [C]. CLTC measures at approximately 28 km/h average speed with urban-weighted segments [V]. Nobody drives at 28 km/h on a highway. The question is what 902 km translates to in your operating environment.
What Independent Testing Shows
Yiche.com published the first independent real-world range test on March 20, 2026 [V]:
- Comprehensive range: 785 km (87% of 902 km CLTC)
- Highway at 85 km/h: 327 km (72.5% of CLTC)
- Test conditions: 0-10C ambient, 24C cabin HVAC, dual occupant
Comparable vehicles (BYD Han EV, Tesla Model 3 China) consistently show 30-40% reduction from CLTC to real-world highway range [I]. Applied to 902 km at 110-120 km/h and moderate temperature: estimated 540-630 km [I].
What Is Missing
Planning Reference
| Scenario | Range | Tag | Source |
|---|---|---|---|
| CLTC (lab, ~28 km/h) | 902 km | [C] | Xiaomi official |
| Comprehensive (0-10C mixed) | 785 km | [V] | Yiche.com March 20 |
| Highway 85 km/h (0-10C) | 327 km | [V] | Yiche.com March 20 |
| Highway 110-120 km/h (~20C) | 540-630 km | [I] | 30-40% CLTC discount |
| Winter -20C | 350-470 km | [I] | Capacity + heating inference |
The independent test at 110-120 km/h sustained highway speed is expected Q2 2026 (Monitoring Trigger T1). Cold-weather independent test expected Q3-Q4 2026 (T3).
Xiaomi SU7 (2026) Charging Performance Audit
Complete CLTC discount analysis with comparable vehicle data and temperature sensitivity modeling.