This is the Michelin Pilot Sport 4 S ZP, the runflat version of this performance summer tyre.
- ZP: Michelin Zero Pressure, its runflat technology.
- 97 load index: 730 kg per tyre under specified conditions.
- (Y) speed rating: above 300 km/h, subject to Michelin’s operating limits.
- XL: Extra Load construction.
- Acoustic: not listed.
- ZP is a technology marking, not BMW or Tesla approval.
For Michelin product code 231124, the confirmed EU label is:
- Fuel efficiency / rolling resistance: D.
- Wet grip: C.
- External rolling noise: 72 dB, class B.