New or Significantly Altered Models

2018 Buick Enclave

2018 Buick Regal Sportback

2018 Buick Regal TourX

Mostly Unchanged

2018 Buick Cascada

2018 Buick Encore

2018 Buick Envision

2018 Buick LaCrosse

The availability of V6 and AWD models changes. A new range-topping Avenir model is added.

Discontinued

2017 Buick Regal

2017 Buick Verano