1998 Pontiac Grand Prix Tire Sizes
Factory original equipment (OE) tire specifications.
GT
Tire Size
P205/70R15
Load Index
95
Speed Rating
S
GT
Tire Size
P225/60R16
Load Index
97
Speed Rating
S
GT
Tire Size
P225/60R16
Load Index
97
Speed Rating
H
GTP
Tire Size
P225/60R16
Load Index
97
Speed Rating
S
GTP
Tire Size
P225/60R16
Load Index
97
Speed Rating
H
SE
Tire Size
P205/70R15
Load Index
95
Speed Rating
S
SE
Tire Size
P225/60R16
Load Index
97
Speed Rating
S
SE
Tire Size
P225/60R16
Load Index
97
Speed Rating
H