Hi Chris and welcome
Unlike grass where there is something going on anywhere in the country most weekends, and the bulk of the drivers just race locally or regionally, at the moment there are no regional rallycross championships, just two national ones, with meetings geographically spread all over the UK.
Knockhill in Scotland, Pembrey in Wales, Nutts Corner in Northern Ireland, Croft in northern England, and Lydden in the south.
You can't just arrive and drive in rallycross all entries have to be pre-booked.
Blyton at the moment is not doing rallycross.
There is hopefully going to be a winter series organised by The Cramlington & District Motor Club. It will be based in the north, keep watching the forum and details should be announced when things have been finalised
If you are free on the first weekend in October I would recommend you go along to Pembrey, it's the final round of The Clubmans Championship, and the penultimate one of the MSA Championship.
All classes will be there racing so it would be a good chance to chat with the drivers, and championship co-ordinators.