there is a recent testing review from tirerack that compares the stock model 3 18inch Michelin Primacy MXM4 T1 (OE) vs Michelin CrossClimate2
https://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=298
also stock model 3 19 Continental ProContact RX T1 (OE) Vs Continental PureContact LS
https://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=299
i wish they could have included the Pirelli P Zero All Season Plus Elect and Pirelli P7 A/S Plus 3 comparison vs stock. also the very popular Michelin Pilot Sport All Season 4.
https://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=298
also stock model 3 19 Continental ProContact RX T1 (OE) Vs Continental PureContact LS
https://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=299
i wish they could have included the Pirelli P Zero All Season Plus Elect and Pirelli P7 A/S Plus 3 comparison vs stock. also the very popular Michelin Pilot Sport All Season 4.