I bought a 2018 hyundai gt sport 3 months ago. since day one car has been stalling and having a hard time starting. i was on the highway doing 75mph and the car just turned off no warning. i called the dealer in my area let them know about the starting issues and the stalling issues with the car i took it in to them few days later. they kept it for 3 days and told me sorry we do not know what to tell you. took it home and that day the car stalled on my way home. i took the car back to the dealer and they had it for 23 days and replaced the fuel pump and the injection system and still did not work. the dealer i bought it from replaced the battery, keys starter and alternator before i bought it and they did not tell me this car was having issues. the car is back at the dealer 3/7/2019 with stalling issues and rust build up on the bottom of the car. i have a case with hyundai and they keep telling me take it to another dealer 4 dealers later and nothing.check engine light came on flashing one day but went off and no codes found. this has been going on for about 21/2 months car is out of service now for a total of 26 days now including the days its been at the current dealer.