Yes, but you all seem only to understand the concept of group ownership.

There is such thing as "membership" where you don't actually own the aircraft and is thus a "no-capital" group.
Two "snags" I have come across...
- You need to prove to the owner that you are a sufficiently competant pilot to fly his/her baby
- There may be a minimum term contract on the monthlies.
Some membership schemes require a deposit, of which, a quantity may be non-returnable.
See the PFA Group Flying booklet, available to order on their website or by telephoning them at HQ.