welcome to the forum, you will hear alot about ims bearings, but if you like to gamble, dont bother, high revs are healthy for the bearings and good often changed highish weight mobile 1 oil.. during oil changes check your filter for metal shavings, if you see any shavings stop driving immediately and replace the bearing, until then, just be precautions. Beauitiful car, drive it like you stole it, (for the bearings sake

) im at 105k original bearing, many others have many more miles on their cars, try not to worry too much over it. Enjoy your S.