2015/16 A3 2.0T Quattro concerns
 

Currently driving a 2012 Passat, with the 2.5L NA engine, and need more horse power.
I'm looking at buying one of these (A3), with hopefully less than 40k miles. What kind of issues will I have to deal with as far as reliability goes?
My Passat is pretty bullet proof, only repair in the 1st 46k miles was replacing the original battery last summer. I love my car, but passing people is a struggle.
Any feedback is appreciated