Front wheel drive/rear wheel drive/4 wheel drive is a mixed bag. All of them have towable cars. All of them have cars that can not be towed. You have to check the owner's manual (or other knowledgeable source) for each car that you are considering.
You do need to hook up tail lights. There are 3 methods.
1. (rarely used) magnetic lights on the back of the car, or on a metal bar fabricated to go into the car's trailer hitch.
2. (occasionally used) drill a hole in each tail light assembly and insert a new 1157 bulb/socket. This keeps the car's electrical system completely isolated from the RV's electrical system.
3. (most common) use diodes to hook the RV's brake/tail/turn signal wires into the car's current tail light wires.
You will also need an auxiliary braking system of some type. There are many choices out there to choose from.