I am almost certain that there are no longer any aircraft based there. As far as I know there is a circuit for banger racing but not drag racing. It was a while since I was there, but if I doubt the surface is suitable for aircraft anymore, although I remember an AA5/PA28 that made an emergency landing there a few years ago. Besides movie making, markets, banger racing and driver training is probably more profitable than aviation - both the Mummy movies had scenes filmed at Bovo.