Not sure what trim options are for your 2018 Cadillac CT6?
Choose from the options below.
Version/Option
Tire Size
245/45R19
245/40R20
245/40R20
235/50R18
245/40R20
245/40R20
235/50R18
Front: 235/50R18, Rear: 265/45R18
265/45R18
245/40R20
245/40R20
245/45R19
245/45R19
245/40R20
235/50R18
Version/Option
Tire Size
Version/Option
Tire Size
265/45R18
245/40R20
245/40R20
245/45R19
245/45R19
245/40R20
235/50R18
Version/Option
Tire Size
Version/Option
Tire Size
245/40R20
235/50R18
Front: 235/50R18, Rear: 265/45R18
265/45R18
245/40R20
Version/Option
Tire Size
Find your personalized tire set.
There are two places to find your tire size. Look directly on your tire sidewall or inside your driver’s side door jamb for your vehicle’s tire size.
Passenger Tire Sidewall
High Flotation Tire Sidewall
Inside Your Door Jamb