The 2013 Honda Fit can be towed four down. There is a 65 MPH speed limitation and no distance limitation. No other restrictions for the manual transmission. On automatic transmission models, run engine at the beginning of each day, press brake pedal and move shifter through all positions, shift into DRIVE and hold for 5 seconds, then to NEUTRAL and let engine run for 3 minutes. Repeat at least every 8 hours thereafter. When towing for long periods, remove 30A radio fuse. Baseplates are made by several manufacturers.