2013 Subaru XV Crosstrek Premium 4dr SUV AWD (2.0L 4cyl CVT)
I bought my Crosstrek in January, 2013.
Thus far, I have 16,000 miles of mostly highway driving (probably a 75/25 split) and am averaging 32-33 MPG with the automatic transmission.
Though it doesn't have exceptional power or acceleration. what do you expect from a 4 cylinder motor?
While the synthetic oil is certainly more expensive, you don't need to change oil except every 7,500 miles (some say 10,000 miles).
This makes it roughly comparable to annual oil costs with regular oil.
I have gone many places that a regular 2 WD sedan would never have taken me.