Engine Noise problems of the 2014 Hyundai Elantra

2014 Elantra gt manual 6 speed, purchased 8/6/18 with 31,636 miles from a non Hyundai dealer in massachusetts. I live in upstate NY. The car came with a 90 day or 3,750 mile dealer warranty, and is still under the factory warranty up to 60,000 miles. I'm the 2nd owner. At approx 34,500 miles, on 10/5/18, while accelerating uphill, the engine began to make a sharp and loud rapping and squealing noise and lost power. I was in heavy traffic on a country road with no where to stop, but I managed to pull over after coasting downhill for approximately one mile. I checked the engine oil immediately and there was no oil showing on the dipstick. I called my wife to come and pick me up and asked her to bring 3 quarts of sae 5-20 oil as indicated on the fill cap. It took 2 quarts of added oil for any oil to show on the dipstick, indicating that there had been significant and excessive oil consumption in the 2 months from my date of purchase, at which time the dipstick indicated that the oil was at the full level. The car had an oil change prior to my purchase per the salesman at the dealership where I bought the car. There were no warning lights on prior to the engine failure, and non came on afterward. The car is at a local Hyundai dealer being diagnosed. The Hyundai dealer provided me with a loaner car "for the duration", that they told me was included as part of the factory warranty and would be free of charge. I suspect a crankshaft bearing, con rod bearing and/or wrist pin failure, and seized piston(s) due to oil starvation.