Mountain bike pop-up camper vacation would be awesome
You Can Pull the World's Smallest Pop-Up Camper With Your Bike (Pop Up Camping Hacks)
This bicycle camp trailer is perfect for Moab! Kamp-Rite Midget Bushtrekka Bicycle Camper Trailer with Oversize Tent Cot
This page has a list of bike camping trailers. Surely if you can pull a trailer with a bike there have to be some that your little car would happily tow.
This bicycle camper is light enough to pull behind you, yet it's large enough for you stay out of the elements, relax, eat a meal, and even get some sleep.
SylvanSport GO camping travel trailer. This thing really is the coolest camper ever.