[TeinBMW]

+1 to unmarrying. The cobb saves your vin number I believe so it would be pretty tricky to flash more than one car.

Here's how I would tackle on allowing the accessport to flash more than one car.

You flash a car, and upload its data saved on the accessport to a computer. Then wipe the accessport off clean and flash another car. And then when you want to unmarry your car, you have to somehow upload your cars stock map back on to the accessport from the computer. That's how I would attack this. Hopefully this helps!