Sebring in modern times is a circuit of two distinct halves. From turn one through the more twisty infield section it takes the characteristic of a normal race track, ribbons of tarmac coursing through grass verges. But the rest. and the fastest parts of the circuit, retain the old character that made Sebring famous. The cars skate across the ancient, cracked concrete slabs that once housed war planes, and follow a path picked out by harsh concrete barriers. It's very fast, but very, very bumpy.
Like many airfield courses in America that means the track is very wide, wide enough for at least four cars to race side-by-side without hinderance. And turn 17 is a vast sea of contcrete, a bewildering ocean of nothingness to the unuspecting driver. Sure that means there's loads of run off, but the inside of the corner is marked by solid, reinforced concrete barriers do how close so you want to run to the first apex, and how deep do you brake when there's no real edge to the track?