2020 CAN-AM COMMANDER Engine Problems

I PURCHASED A NEW CAN AM DEFENDER ON MAY 30 WITH NO TEST RIDE. UPON RETURNING HOME I DROVE THE UNIT TO MY NEIGHBOR'S HOME, NOTICING A VERY LOUD RATTLE. MY NEIGHBOR AND I DID A SUPERFICIAL INSPECTION AND DISCOVERED THE PASSENGER SIDE SEAT BELT BOLT THAT ATTACHES THE SEAT BELT TO THE FRAME WAS NOT EVEN FINGER TIGHT, DESPITE THE DESIGN INCLUDING A BOLT WITH A NYLON WASHER LOCK ON THE BOLT. WE ALSO NOTICED THAT THERE WAS NO ANTI-FREEZE IN THE RESERVOIR. I DROVE THE UNIT HOME AND INSPECTED THE UNIT A LITTLE MORE, DISCOVERING THAT THE OIL HAD BEEN SIGNIFICANTLY OVERFILLED, NO ANTI-FREEZE VISIBLE WHEN LOOKING INTO THE RADIATOR AND THE RIGHT REAR SHOCK ALSO BEING ATTACHED BY A SIMILAR BOLT WITH NYLON LOCK NUT THAT WAS ALSO NOT EVEN FINGER TIGHT. I REALIZED THAT THERE WERE SIGNIFICANT ISSUES WITH THE WAY THE MOTOR WAS PREPPED PRIOR...