NHTSA Complaint #11620078 — 2016 HYUNDAI GENESIS COUPE

My 2016 Genesis coupe will spontaneously, randomly accelerate, full throttle. I can't stop it until I throw it into neutral. There doesn't seem to be any common factor for it to happen. More often it was on the start up but sometimes as I was driving in traffic. The incidents are usually far apart. I have nearly wrecked too many times, so I parked it for good until I find the solution. I won't sell it and cause another person to possibly wreck or injure others. The local Hyundai dealership kept it for two months and test drove it but the problem didn't reoccur. They said nothing showed on the diagnostic (that past history on the diagnostic may have been erased) and they found no incident reports on this. So now I don't have transportation as my old truck is in the shop with transmission issues. Prob from over use. I can't afford to buy a new car until I can sell this one. Anyone know anything? The different occurrence is thorough out 2023 until parked approx April 2024