This 1970 Plymouth Hemi ‘Cuda convertible isn’t just rare — it’s the very first of only fourteen ever built, wearing Rallye Red paint, a black top, and the Shaker hood scoop that came standard on every Hemi ‘Cuda. Underneath sits the legendary 426 Hemi V8, rated at 425 horsepower and fed by dual four-barrel carburetors. Decades later, it remains one of the most sought-after Mopars in existence. See what makes serial number one worth more than the other thirteen.