The rumors have proven to be true. Buick wants to build a new flagship sedan and the Avenir Concept is the evidence we've been waiting for. Having its official debut in Detroit, the Avenir, French for future, is the culmination of a global design team of Buick designers and sculptors who were inspired by historic Buicks. The result is a progressive, sporty and luxurious design. With sculptural surfacing, expressive proportions and Buick's signature sweep-spear body side, the Avenir features a long hood, wheels-at-the-corners stance and a sloping, rear deck.

Perhaps the most visually striking styling aspect is the new grille, featuring a large opening accented by a return to the three-color – red, silver and blue – Buick tri-shield insignia. It's further accented by wing-shaped elements and flanked by full LED headlamps. Note the short overhangs and a broad-shouldered stance. Riding on 21-inch wheels, the Avenir is powered by GM's next-generation direct-injected V6 with Active Fuel Management and stop/start tech. It's paired to a nine-speed automatic gearbox that sends power to a twin-clutch all-wheel-drive system. The dash features a 12-inch color touchscreen.

There's also mobile device wireless charging and OnStar 4G LTE with WiFi hotspot. To sum up, the Avenir is everything a proper Buick flagship ought to be. It's an entirely feasible project and we're hoping the production green light isn't too far off.