Car purchased/financed, but not yet seen/dripped/tested

Hello I hope you understand me, a slightly longer text: We financed our car, bought us a caravan this year and found out that our financed car is too weak, chose us a new one and wanted to refurbish, said, are several dealers and one offered us something suitable. We then got the description and pictures from the dealer and said yes. We then brought our current car there,the refurbishment we wanted to do a test drive and so on but the new one hasn’t been transferred yet, what if we don’t like the car? our old one is already gone, now have a rental car out of the car house! you have only 14 days right to call again? and our old one is certainly gone until then ? lg excuses the spelling, talking is easier