Input Requested - New Toad

Have been towing our old Jeep TJ but we are thinking of making a change. We are considering Honda Fit, Chevrolet Sonic and Fiat 500 - all manual transmissions. Looking at used back to 2012 and/or new. I have one major concern in changing to one of these smaller/lighter cars - road clearance! I have a Roadmaster All Terrain with a Ready Brake system setup for the motorhome. Please share with me if you have any experience with any of these cars. By the way, I stated manual transmission as there is so much conflicting data out there on automatics Thanks.