I also had my engine go into this "limp home mode" at the very end of our ED trip. Since it was in rural France on a Sunday at noon we just "limped" for a few minutes to the next village and stopped for lunch. After lunch the car started again and we never had that problem again until we dropped the car off a couple of days later.... But we were quite worried this would happen on a car with less than 2 weeks on the road (though already almost 5000 kilometers on the clock by that time). I have asked the dealer to take a look at it when the car comes in from transport.
Let's keep updating this thread to see if these are just isolated events or is going to be more of a pattern.