I need some input on rim and tire sizing.

Im looking at Enkei PDC wheels

http://enkei.com/shop/performance/new-pdc/

I want 17x7.5 they offer they two offsets 40&50 which will look the best? Also will I need hub rings? Tire rack says these wont fit Grand Prix's that is why I need some clarification

http://enkei.com/wp-content/uploads/2015/11/PDC.pdf

I was wanting a touch more sidewall so I thought I would go with 235-55-17 any reason to think they would cause issues?

What do you think about these goodyears?

http://www.tirerack.com/tires/tires....cleSearch=true

Price seems good to me

Any input opinions appreciated