Ok, couple things that you should be concerned with here...
They said it has a new drive train, well, congratulations!! You are the test. You bought a car that will be going through a "growing up faze", it'll be cutting its teeth with YOU. They don't know what to do with it, they don't know exactly what is wrong and they don't know how to fix it. Now at the factory they are gathering this type of info, testing and making improvements for next year's model. As for you? You're stuck, but this is what you can do.
Document. Continue to take it to the dealer and document the history. That way when it does fail they MIGHT cover you when it's out of warranty.
Trade it in. Get rid of it, you bought a first year of a new drive train car, it'll never be right, get rid of it now.