I have that many miles on my '00 RS. I drive hard sometimes (mostly hard turns) and AutoX it harder. What should be changed or looked at to keep her in good condition.

Your tranny oil should be changed more frequently if you are auto-x-ing your car. Your brake pad should be changed if your a late and hard braker. check your clutch fluid and brake fluid frequently. It's mostly basic stuff you should be checking periodically anyways. Oh year, check tire wear and rotate more frequently. Maybe every 6k or earlier.

if you follow these service
3750
7500
15,000
30,000

you should be doing a 7500 again. how often do you autocross? I do it once a month and brake pads are fine... i rotate my tires every 7500...