yeah, in the grounds of the park, and that event is open to the public as well as members, ( join there...

). I imagine if you strolled down to Bedford in your BM, you'll get in no trouble. (but if not, just pop down anyhow, leave your car at the gate in the car park, and make your way onto the track, it's an open lane, and you can get across to the centre no worries. You may even be able to find a ride!!