PR, you still on the forum? Because I just got back from San Juan, and all I have to say is I can completely understand why you traded the Z for an M5. The roads are probably the worst I've ever been on..and I live in Pennsylvania, which routines gets rated as having the worst highways in the country. I have never seen so many potholes, even around here in winter.
While I was there (for almost a week) I saw one 40th anniverary, and one black roadster. Saw a couple vettes, couple of Cayman S, and not much else in the performance department.
Hope you enjoying the Beemer!
__________________
Rain, snow, sleet, hail: 2009 Mazda 3 sGT HB
Everything else: 2009 370z, PW Touring 6MT