Town and county GAVE UP the Subaru Franchise, which means that they are no longer selling them anymore, new or second hand, although, as I understand it, if you were to go to them and ask, I believe that they should be able to source you a car if you knew what you were after...
They are however, still Subaru approved for servicing, still with the same staff, and they still do parts. as Dunk pointed out, you go into the Landrover dealership for that now, for both servicing and parts.
As Craig pointed out, AutoEcosse are also now Subaru Dealers, and do Sales/Parts/Sevicing, and they give decent enough service, I was down there a while back getting stuff done from them.