Time evaluation for slow down, pit entry, turn around, re-join track and return speed. The car speed before and after was 135m.p.h.
Note
The first attempt at high speed resulted in missing the track exit and therefore continuing to do another couple of laps before another attempt.
Video shown with thanks to Millbrook Proving Ground
Points to note
Track length 2 miles
There is only one bridge across the track
Rear view mirror was temporary as on a shared track