I have both the burgundy Tin Goose prototype and a limited edition green Tucker and there are a number of differences in the two models. Yes, the prototype has front opening rear doors and the other has suicide rear doors. There are front turn signals on the green model and none on the burgundy one. Tucker badging on the front door on the burgundy model and not on the green one. Other differences are the prototype has driver fender antennae and no mirrors and the green one has mirrors but no antennae. There are few subtle difference in the rear on both cars and lastly the prototype has fixed up windows in the rear doors and the green one has the windows down.