In theory, it could effect your qualifying lap time...
The old timing line at Road America was at the apex of Turn 14 (the last corner leading up the front straight).
Back in the day, it was quite common during qualifying when you knew you had a flying of a lap, to come in extremely hot and blow off the corner with no regard to your exit speed. Yes it hurt your next lap because it killed your exit speed, but you didn't care.
This was worth a couple of tenths of a second.
Tom Kendall was a master at using this trick in the Trans-Am series.
About 10 years ago, they moved the official timing line to Start/Finish so the you could not take advantage of the timing location.
If I recall correctly, the old MAR track in Wentzville had a similar issue in that the S/F line was slightly past the normal braking zone for turn one. Again, when you knew you had a flyer, you blew off the corner and used the runoff area on the outside of turn 1.
Made for some exciting finishes in FF and FV too :shock: