Try bringing your wife along to the picnics, which are very sociable, informal and lots of wives come too, less blokey than some events, and there's always the house to go round.
Walton Hall Concour will be good too as there is a spa there.
Go along to your area group too. even if you go alone, then you'll have some people to introduce her to - quite a few partners come to my AG for instance, Three Shires.
Maybe see you at some events - my car is on page 13 of Ferrari mag, current issue.