2006 Cadillac STS Tire Sizes

Factory original equipment (OE) tire specifications.

V

Front

Tire Size

P255/45R18

Load Index

99

Speed Rating

Y

V

Rear

Tire Size

P275/40R19

Load Index

101

Speed Rating

Y

V6

Tire Size

P235/50R17

Load Index

95

Speed Rating

S

V6 w/Luxury & Performance Pkg.

Front

Tire Size

P235/50R17

Load Index

95

Speed Rating

V

V6 w/Luxury & Performance Pkg.

Rear

Tire Size

P255/45R17

Load Index

98

Speed Rating

V

V8

Tire Size

P235/50R17

Load Index

95

Speed Rating

S

V8 w/Handling Pkg. (Summer Only)

Tire Size

P255/45ZR18

Load Index

99

Speed Rating

W

V8 w/Handling Pkg. (Summer Only)

Tire Size

255/45ZR18

Load Index

99

Speed Rating

Y

V8 w/Luxury & Performance Pkg.

Front

Tire Size

P235/50R17

Load Index

95

Speed Rating

V

V8 w/Luxury & Performance Pkg.

Rear

Tire Size

P255/45R17

Load Index

98

Speed Rating

V

V8 w/Premium Performance Pkg.

Front

Tire Size

P235/50ZR18

Load Index

97

Speed Rating

W

V8 w/Premium Performance Pkg.

Rear

Tire Size

P255/45ZR18

Load Index

99

Speed Rating

W