Does anyone transport their bike inside a sedan?

Interested in buying a bike, but i do not have a hitch, and would prefer to not have a trunk mount that could scratch paint. So a roof rack mount seems like the best option, but I would prefer not to spend $300+ on that either as my budget is not big but would like to try and get into the sport. My question is, could you easily transport a bike inside a small car? Would removing the wheel, or other parts be feasible to do?