The Buick GNX was General Motors' ultimate turbocharged variant of the G-Body Buick Regal, and a mere 547 original GNXs were produced in 1987. Due to the difficulty and expense involved in finding an all-original GNX today, many classic car buyers and restorers have sought out its closest sibling, the Grand National. However, this wasn't the only other high-performance, turbocharged Regal variant. In this article, we'll take a look back at two other performance-oriented, forced-induction Buick Regal models, the Regal T-Type and Turbo T.