Fronts are correct, but the rears are 275/35-19
Thank you. It has been corrected.
Front offset for 2014/2015 (Possibly 2016/2017) is 48mm not 46mm. Stamped right on the wheel. Unless Alcoa got it wrong and GM didn't notice.
...not sure on what’s the best / biggest / widest / maximum tires or rims will fit your car?
Write about the tires you are currently driving on.