135mph back in 2001 in my '93 VW Corrado. I miss that car
Before traffic was extremely bad in the 'burbs of Northern VA, there's a stretch of highway by Dulles Airport that was

for trying to top out a vehicle. Just removed the electronic governor from my car and wanted to see what it was capable of.
Ran out of highway and came into a slight turn at 135, my car wasn't low enough and the amount of air going under the car was crazy, steering was almost nil. Had to pucker up and slow down slowly.