OEM 20's came with BMW star rated Michelin Pilot Super Sport (they're great in the DRY only) very sketchy in the rain above 60mph.
After 7k miles i switched to Continental DWS06 which were day and night difference in Rain
Currently on my 19's I am on Michelin Pilot Sport AS 3+ not as sketchy as MPSS in rain but not as confident as DWS06