Not on that road, although a speed van sometimes parks towards the bottom of the hill, but not late at night. It can be a bit of a racetrack as it's dual carriageway and the hill starts almost as soon as you leave the lights.
I rarely speed these days. The M40 is about the only motorway where you can go over the speed limit and not be at risk of getting a ticket (barring the odd speed trap on bridges). Nearly every other motorway is covered by cameras now.