I'm very seriously considering taking my car to the (in)famous Ring over the Easter long weekend. I'm going with some friends, and I've already booked the accommodation, so now I need to decide if I'm going to be flying and possibly renting something to drive on the Ring and get lots of passenger laps, or go in my car!
I'd love to take my own car there and see what it will feel like around that track.
But I'm worried about something breaking, simply because the car would be driven very hard, at high revs, and for a longer periods of time, than I ever get the chance to... ahem... on the (very quiet, secluded) roads here.

It has been maintained very well, full service history, but still...
What do you guys think? I want to change the oil and the filter on it anyway before I go. BTW, I was considering doing this myself... How difficult might it be? I read it can be a pig of a job, but not sure this applied to the V6. Has anyone done it themselves on the V6 and how did they find it?
What else should I check, and any other general tips?
Thanks!