The Tire Rack ratings are quite interesting:
https://www.tirerack.com/tires/surveyresults/surveydisplay.jsp?type=MP&frontWidth=215%2F&frontRatio=45&frontDiameter=20&rearWidth=245%2F&rearRatio=40&rearDiameter=20&filter=y&autoMake=BMW&autoYear=2019&autoModel=i8+Roadster&autoModClar=