Dodge built only 80 Hemi Darts in 1968, turning a humble compact into a six-figure drag-strip legend almost overnight. But a deep dive into the Dart’s full history reveals the real bargain hiding in plain sight: the ordinary Slant-Six version, famous among owners for outlasting engines twice its horsepower. Here’s what separates the unicorn from the daily driver, and why knowing the difference matters before you buy.