Catrike 700, Greenspeed GTO trike, , Linear LWB recumbent, Haluzak Horizon SWB recumbent, Balance 450 MTB, Cannondale SM800 Beast of the East
You are severly limiting the selection of trikes by deciding in advance that you want a folder. Probably better than 90% of the used trikes on the market do not fold. Folders are a fairly recent advance in triking. Try the regular ones and you might just like what you ride. I have carried my non-folding GS GTO and an older WW 3.4 inside of vehicles, on the roof, and even on a regular rack that hangs off the back of my vehicle. While you can save some $, decent used trikes are still pretty expensive. Check out www.bentrideronline.com for a fairly large number of trike reviews. It might help you make a decision.