Pontiac G8 Tire Sizes

Here is a list of Pontiac G8 tire sizes, including the correct sizes for each year and model.

2008 Pontiac G8 Tire Sizes

Submodel	Tire Sizes
Base Model	245/45R18
GT	245/45R18 (front) 245/40R19 (rear)

2009 Pontiac G8 Tire Sizes

Submodel	Tire Sizes
Base Model	245/45R18
GT	245/45R18 (front) 245/40R19 (rear)
GXP	245/40R19