I loved the 2 Sonatas that I have owned. The first one never gave me a problem, and I traded it at Anderson Hyundai for another that I have enjoyed until I began having "loss of power" issues. When I first noted it, it was only in accelerating from a stop. I was told 3 times that it was the "double clutch" that this car had (2016). Then I began having problems with loss of power while driving at a steady speed, even when it was on cruise control. I had it towed in and when I arrived with the wrecker, I was told the service department would be in touch with me as soon as they had a chance to check it out. 13 days later I was asked to return my rental car to exchange for another. Upon arriving at Enterprise of Anderson I was told that THEY had received a message that my rental contract was to end the next day. Since I didn't want to drive 30 miles one way back to Anderson the next day, I asked them to call Anderson Hyundai and verify that my car was finished. They called and were told my car was ready to pick up. When they took me to Hyundai, I was told that the service techs were unable to "duplicate the problem" I had described. Four days later, I went to another dealer to consider trading cars. The sales manager there drove my car and then came to me and said, "Ma'am, you have a problem..." He offered to tell the service department his experience which was much the same as mine. I started home and even leaving that car dealership the power started cutting out. Then on US 25 with several cars following me, the power cut back so severely that I thought the car would stall completely. I called Hyundai of Anderson; they sent another tow truck; they arranged for another rental car. After 12 days they still had not been able to duplicate the problem. During this nearly a months time, Hyundai of Anderson initiated only one call to me. That was the day after Labor Day when the service manager called to ask me why the car was back on their lot (it was taken in on Saturday of Labor Day Weekend). I called several times to find out if they had identified the problem. Several times I was told they had not had time to look at it during that first 13-day period. I asked one of the managers (Parts Dept.?) if he would take the car home with him and drive it for 3 or 4 days. I told him I didn't care about the number of miles it took, but I just wanted the problem identified. Although it may have simply been coincidence, the 2 times that the loss of power was the worst I had driven it for over an hour and it was 91 degrees outside. I suggested they take it for a longer drive in similar weather conditions. After suggesting 3 times that they talk to the manager at the other dealership, the owner of Anderson Hyundai finally agreed to speak with him. I called and then gave the phone to the owner. After listening to the other man on the phone, he hung up the phone and said, "Well, he's just a sales manager; he's not a technician." At any rate, I picked up my Hyundai on Sept. 12th without the service department telling me it was ready, and bought a Nissan the same day. Hyundai automobiles are great, IF you can find a conscientious service department!