ferrari car exchange club

Does anyone know of a service (that you can vouch for) that is available for Northern California (or USA wide) that allows you to borrow/trade high-end cars at will? There seems to be at least one in UK (www.p1international.com) and one in Florida (http://www.ec-cc.com/about.cfm). In California, it is pretty $$ to buy and sell (ie trade out cars) frequently due to high sales tax and no sales tax credit on trade-ins.

Sorry if this is a repeat question, I couldn't find any reference to this sort of thing on search.