Do you miss Buick’s Ultra trim level? A new Buick luxury sedan is coming in 2018. Buick is reviving the Avenir sub-brand for its LaCrosse model. This lavish new model is loaded with extras. Script badges appear throughout its Chestnut leather interior. You can choose the optional high-tech navigation system, and the sunroof and Bose stereo are standard features. If safety is a concern, you can drive with confidence when choosing all-wheel drive and automated emergency braking. The new model will be in dealerships January 2018.