2007 Pontiac Grand Prix GXP Tires

Upsizing Wheels or Tires?

Select a size for your vehicle from the drop down and click the "Alternate Sizes" button to see a list of similar tire sizes. You can then change the wheel size to see alternate sizes on a different diameter wheel.

Choose Tire Size
255/45R18225/50R18


Alternate Sizes

/ Pontiac / Grand Prix / 2007 /

Pontiac equips the 2007 Grand Prix GXP with a 255/45R18 front tire and a 225/50R18 rear tire. Click on the sizes for each tire to compare prices online.

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