Sonic Wheel Weight Comparison 15" and 17"

Comparison of the Chevy Sonic 15" wheel and tire weight versus the 17" wheel and tire.  Both of the tire/wheel combinations were inflated to 35psi for this total comparison.  15" filled with nitrogen, and the 17" filled with compressed air.  Each measurement was taken three times and there was no change in weight for each measurement.
Results:
The stock 15" wheel with factory wrapped 195/65 Hankook Optimo H428's weighed in at a total of 37 lbs, with a four tire/wheel weight of 148 lbs.
The LTZ 17" wheel with factory wrapped 205/50 Hankook Optimo H428's weighted in at a total of 43.5 lbs, with a four tire/wheel weight of 174 lbs.
A difference of 6.5 pounds for each wheel equals a total vehicle weight increase of 26 lbs with the 17" over the 15".