Ahead of its official debut at the 2016 Detroit Auto Show, Buick has unveiled its gorgeous new Avista concept. Built on the same Alpha platform as the Chevy Camaro, the performance coupe packs a 400-horsepower biturbo 3.0-liter V6 engine, mated to an eight-speed automatic transmission that drives rear wheels. There's also GM's Magnetic Ride Control, and as a nod to efficiency, start-stop and cylinder deactivation technology. A stylish exterior features angular headlights and a prominent grille with mesh inserts, as well as 20-inch aluminum wheels. Inside the cabin, one finds Superior Blue and Mist Gray leather upholstery, carbon fiber trim and aluminum accents. A digital instrument cluster is complemented with an IntelliLink infotainment system and touchscreen controls on the full-length center console. Additional highlights include a panoramic glass roof, two individual rear seats, noise cancellation technology and ionic air purifiers with an aromatherapy function.