2007 CADILLAC STS Structure Problems

2007 CADILLAC STS BOUGHT AS A DEMO IN FLORIDA IN APRIL, WITH ABOUT 3,500 MILES ON IT: I TOLD THE SALESMAN THAT THIS WAS GOING TO BE USED EXCLUSIVELY AT MY CONNECTICUT ADDRESS AND I WOULD BE DRIVING IT THERE SHORTLY AFTER PURCHASE. MY COMPLAINTS ARE FIRST WITH THE CONDITIONS OF SALE IN FLORIDA, AND SUBSEQUENTLY, WITH THE FAILURE TO REPAIR ISSUES BOTH IN FLORIDA AND NOW CONNECTICUT. I BOUGHT THE VEHICLE WITH THE AGREEMENT THAT IT WOULD BE MADE 'AS NEW AS POSSIBLE.' THIS WAS TO INCLUDE A NEW BATTERY (SINCE IT WAS DEAD IN THE SHOWROOM), THE OIL WOULD BE CHANGED, AND ALL THE DOOR AND DASH SCUFFS WOULD BE REMOVED. THE BATTERY HAS FINALLY BEEN REPLACED HERE AFTER FAILING TWICE, THE SCUFFS THEY FIXED IN FLORIDA KEEP COMING RIGHT BACK ON THE DOORS AND DASH, AND I JUST PAID FOR THE OIL CHANGE THAT NEVER TOOK PLACE...