Quote Originally Posted by simontibbett
Turn 4 as in the entry of the esses? I've never heard that, why would they have?
Motorcycles mostly. Remember the HUGE amount that was cut out of 12 to make that turn safer? They took the outside wall of 12 and moved it all the way back to the road in front of the helicopter pad. That concrete wall and all that dirt was all trucked over to turn 4 leveling out the low spot then they paved over it. This was all done AFTER they repaved the entire track otherwise they would have lost the account for the 2 largest motorcycle races.

That's why all the pics of the essess that are over a year old look so different.