My MY 2015 has down just under 1000 miles and I have noticed that when stationary the engine idle is very lumpy with the rev needle bouncing and the car gently wobbling/vibrating. I originally though it was because I had my foot on the brake and the engine was trying to drive the wheels but putting it in neutral doesn't make any difference.
I have also noted that the stop/start seems to have stopped working although I do not do lengthy journeys so maybe the engine needs to warm up a lot more before it kicks in??
NB: I did have a crank shaft sensor replaced a week after I took delivery. Hoping it is not that again