I have 212k miles so I hear you... a lot spent on the car in the past 20 years/150k miles, including a Ray Korman engine rebuild with about 25k miles on it. Haven't dynoed it, but intake/exhaust/ECU, overbore/head tweaks adds notable power/torque.
Weekend track insurance on a new ITS with $5k...
Tough choice. I got an ITS in July thinking time to finally let go of the E36 M3 I've owned 20 years, and maybe retire the track days. Long time track instructor friend convinced me the cost to keep the M3 was incremental and we did full course at VIR in it a few weeks back. Man that E36 is...