 I loved my 2015 A3 when I first bought it, but after 9,500 miles I began to have problems.  My car would turn over, but it was unable to accelerate.  The dealership had my car over two weeks and finally told me there was a defective spring on the cylinder.  Once I got the car back the EPC light started coming on and I lose power while trying to accelerate.  At other times when I accelerate the car loses power without the EPC light coming on. I took it back to the dealer and I'm going on day three with still no answers.  I only have 12,000 miles on this car and I shouldn't be having these huge problems.  I love the look, comfort and feel of my car. When it's running I love it, but I am VERY concerned that i will continue to have problems with the car.  On another note you cannot fit normal sized adults in the back seats.  Their heads don't fit and there is no leg room.  The cup holders in the front are awful and it is very difficult to put large drinks in them without spilling.