RVT.com has a section for Tow behind vehicles. Not all listed are fully setup to tow, but lots are. Also search craigslist for "RV" or "Toad" in the Cars and Trucks section. the classifieds on some of the forums like this or iRV.com have towable sections. We bought a nice preowned CRV for about the same as it cost to setup our other car, so it was worth it to try four down towing without a big investment.