To flat tow behind a motorhome, you can figure the cost runs about $4-6,000 once you get all of the things.
- A tow bar to connect the car to the rear of the RV
- A baseplate on the car to connect to the tow bar
- A braking system for the car
- An emergency breakaway switch/control for the car
- Wiring kit for the car so that the turn signal and brake lights work
- Likely an adapter/cord from the 7-pin connector on the RV to a 6-pin connector
Plus installation costs.