Last night a friend invited me to ride around Texas Motor Speedway as part of a charity event. Groups of cars were led by a pace truck. My understanding is that a speed limit was not set. We lagged behind and probably went faster than we should have.
TMS is a unique track. The banking in the turns is quite steep. It may seem steeper because of the length of the track. I felt I was riding around inside a bowl.
Here is a five minute video of the ride.