The 2008 Buick GNX Concept is not a concept that comes from Buick, but simply a product of Popular Hot Rodding's imagination. It is based on the new Zeta platform, giving it a fully independent four-wheel suspension, rear-wheel drive, a six-speed automatic transmission, and a 400hp LS2.

If GM decides to build the Zeta platform in the U.S. (as it had planned until late-March 2005), Zeta-based Buicks could be more than just a limited-edition halo model. If the U.S.-built Zetas were a reality, Buick could offer a base-model LS with a 3.5L 250hp V-6 for around $22,000, a 5.3L 300hp V-8 in GS trim for $27,000, and the granddaddy of them all--the 6.0L 400hp GNX for a transaction price of around $33,000.