Hello, guys! I need help. A couple of weeks ago I bought myself a car that I wanted for a long time and problems immediately began ... Car - 2023 Challenger SXT, brand new. Mileage is now only 600 miles. It all started with a random thud under the driver's seat. When I start the car, sometimes this thud is present and sometimes it isn't. Very unpleasant thing. I thought it would go away, but it doesn't. Also, last week the car randomly shut off while driving. To be more precise - during the start of the driving. I start driving from a traffic light, the car wants to change gear from first to second, as if choking and turning off. After that, I took it to the dealer, but as you can imagine, they don't know what's wrong, because there is not a single error code and the car does not stall all the time. They tested it and the car didn’t die under them. After that, I drove 300 miles, everything was fine, but the thud at startup did not go away. And today the problem with the stalled engine recurred. What are your thoughts on this? To at least give a tip to another dealer to know where to look. Could it be the transmission? Thank you in advance.