2015 LEXUS NX HYBRID Engine Problems

BOUGHT A BRAND NEW NX300H ON 12/29/14 IN NJ. I WAS DRIVING ON THE HIGHWAY AT 75 MPH AND WHEN I WENT TO DECELERATE THE ENGINE STARTED JERKING LIKE THE CAR WAS BREAKING DOWN. I'VE GONE TO DIFFERENT DEALERS...ONE TOLD ME THEY FELT IT AND KEPT THE CAR THEN TO WENT ON TO TELL ME THEY GAVE ME THE WRONG INFO AND IT WASN'T MY CAR. THE OTHER DEALER TOLD ME RECENTLY THEY TESTED IT AGAINST ANOTHER NX300H AND IT DRIVES THE SAME...THE OPERATIONS MANAGER TOLD ME THEY HAVEN'T HAD AN NX SINCE NOVEMBER. HAD MAJOR VISIBILITY ISSUES FROM DAY ONE WITH THE WIPERS...MASSIVE ICE FORMED ON THEM AND A SMEAR RIGHT IN MY VISION LINE KEPT FORMING. HAD TO BRING IT TO THREE DEALERS BEFORE I WAS TOLD THERE WAS A PART MISSING FROM THE WIPERS AND THEN ON THE PAPERWORK THEY SAID HOUSING WAS CRACKED..AGAIN, THE FISHY COMMUNICATION...