Stayed with Club Motorsport this year.
They operate just outside of Arnage, with an informal wooded site, good wash/loo facilities, reasonably priced but limited choice bar. Catering was very good and there was a live band and party on the Saturday night.
There is a coach shuttle at pre determined times, although this didn't work too well for us.
The site is pretty quiet and very relaxed.
http://www.clubmotorsport.org.uk/index.html