I recently saw a few cars that is in GTA online as a result of modders and the only way to get the cars is by someone giving them to you. If anyone out there has the spaceship dune buggy and are willing to help me duplicate it please contact me. I play on xbox 360. gamertag is: ole marthin
the duplication is simple, just sit in the car you want duplicated, start a mission and you will have the car you was sitting in. then you quit the mission and park the car in your garage.