Since your car is still new, you may still be in the break in period. After the break in the MPG's will go up. I have a 2012 hatchback S and get about 31mpg combined all the time no matter how I drive really..Mine is 2014 and I'm only getting 23 MPG city with A/C on so I'm curious what others are getting.
My 17s hurting me too. Used to average 43mpg without trying. Now averaging 40 since 17 swap.08 CVT ... Last few tanks have been 7.9L/100km. Using a/c a lot lately, and running with my 17" summer rims & tires.
Picked up my 2014 HB Note two weeks ago. First base line mileage test came in at 38.3mpg. I do feather the gas pedal and retrained my driving habits from the family 2011 HB 1.8 using a ScanGauge.I have a 2012 1.6S manual sedan and am getting 38.3 imperial mpg with 18x7.5 rims and 215/40r18 tires. Haven't done a real life calculation yet.