I bought my first a few months ago. I chose a Mazda 2 Sport (1.3 gasoline - 2008) and I have been very happy with it so far. However, I noticed that the back of the car makes a sporty sound when I (cold) start the car. Is this normal or does it indicates a problem with the exhaust/muffler?
After driving a while, the car becomes more quiet and seems to run smoother... Do I go to the dealer or not?