Not sure what trim options are for your 2019 Buick Regal Sportback?
Choose from the options below.
Version/Option
Tire Size
Version/Option
Tire Size
Version/Option
Tire Size
245/45R18
225/55R17
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