When we switched from a toy hauler to a motorhome, we had the choice of towing the Jeep or motorcycle on a trailer. Taking the motorcycle instead of a car on our first long trip seemed like a good thing to do. Unfortunately, it rained the entire first week at our destination. When you ride a motorcycle, you get cought in the rain occassionally, just part of the adventure, however, having to start every day in the rain on the bike just sucks. If you get a light enough scooter, take both, the scooter on a motorhome mounted rack and tow the car. You won't be disappointed.
We switched to a Dakota 4x4 truck as the toad and take the Harley in the bed. Best of both worlds. Enjoy.