[Si Coe]

I think the magic question here is how much?

I say this because certain parties around here looked into building such a facility in Manchester, and the general conclusion was that costs exceeded the likely revenue. Now admittedly this was for a true indoor track in a rented building in town, rather than a shed in a field, but some of the issues remain.
Generally people were keen to race on a dirt track, but not so keen to pay extra to do so.

Jo90 - I raced at Harwood Hall a few times in my youth. Fun surface, fine for my RC10 but I remember we used to have to strip down the gearbox on my brothers Cougar every round as it would fill up with dirt!