As I mentioned, keep checking in at the Mercedes web site, and I will try to post when we will next be there - summer, I suspect. But there were some years we have not been able to arrange a date for track time at all. The track is just really busy!! Something going on almost every day of the week.
As for speed of the SVX there. I'm very conservative and don't run more than probably 7 - 8 tenths of the cars capability. On the long straight, maybe 125 MPH. Keep in mind that one leaves the Oak Tree Turn which is very tight (Vettes come out of the turn at only about 40 MPH) to enter the straight. BTW, this year there was a Z06 there to run with us, and my son got a ride - fastest of his life, he said. The Z06 was hitting about 157 MPH at the 3/4 point of the straight (about a mile in length). My son started looking for the braking makers at that point!!
At that point, I am barely making 100 MPH.
Again, I love my car too much to take too many risks.
Harry