will my Buick chrome rims fit my gxp

Why would you want to take those beautiful 18" wheels off the GXP?

Oh, I think you'd have clearence issues. Is it really worth the added expense to put smaller brakes on a heavy car?

And it'* front wheel drive, no rear end ratio. It'll be called final drive ratio.

there a sharp cet of chromes

How big is your spare tire? That'* probably how small you can go without changing brakes. Your oil and trim issues ight be covered by the warranty. I'd check that out. And please don't drive such a new engine hard, that could cause your oil burning problem.

spare is 17inch

Get you GXP Wheels chromed. I don't think that 16'* would fill your fender wells enough.
Too small In my opinion. :briding:

Lets see some pics.

16'* are 70 series.....18'* are 50 series+ about same combo height

i think the differnce woudl not be noticible...most aftermarket rims are heavier than stock wheels