2004 Pontiac Grand Prix Tire Sizes
Factory original equipment (OE) tire specifications.
GT1
Tire Size
P225/60R16
Load Index
97
Speed Rating
S
GT2
Tire Size
P225/60R16
Load Index
97
Speed Rating
S
GTP
FrontTire Size
P225/55R17
Load Index
95
Speed Rating
H
GTP
RearTire Size
P225/55R17
Load Index
95
Speed Rating
H
GTP w/Competition Group Pkg.
FrontTire Size
P225/55R17
Load Index
95
Speed Rating
V
GTP w/Competition Group Pkg.
RearTire Size
P225/55R17
Load Index
95
Speed Rating
V