My nearest club (
South Coast RC Car Club ) is almost solely electric 8th cars. They sort of started as a bashing club and it's almost grown into proper racing. I'd say 10 electric truggies there and about 3 or 4 nitro buggies.
Clanfield which is a bit up in the air at the moment due to it now being part of the national parks and planning having to be re-applied for has been Nitro only every time I've been.