NEW YORK — Debuting with the 2018 Buick Enclave, the new Avenir sub-brand represents the highest expression of Buick luxury. Avenir offers unique styling cues and an extensive set of standard features and premium materials throughout the vehicle. New and versatile functionality, interior spaciousness, and intuitive technologies build on the Enclave’s established popularity. Smart innovation and style come standard on the 2018 Buick Enclave Avenir. Buick-first Evonik Acrylite exterior lighting illuminates the road ahead with the power of more than 100 LEDs across the vehicle. A Rear Camera Mirror provides a clearer, broader view of what’s behind. And in-vehicle ionization leaves the air cleaner and fresher. It’s all packaged within an elegant design that combines concept car inspiration with improved interior luxury amenities and roominess for up to seven passengers. “The Enclave has been a successful formula for the Buick brand, with sales results that have defied traditional ...