MICHELIN PILOT SPORT 4 P245/45R20 103Y BSW ALL SEASON TIREControl and Reactivity. Dynamic Response Technology ensures optimum transmission of steering instructions to the road. Exceptional Wet and Dry Grip. Formula-E Tread Pattern combined with a new generation of functional elastomers and silica provide excellent grip and braking. Improved Efficiency. Put more power to the pavement with 13% less rolling resistance than the Pilot Sport 3.