in 2002 a 1971 Plymouth Hemi Cuda convertible generated national headlines when it became the first muscle car to sell for over one million dollars
This car had five different engine options available ranging from a 340 to 440 cubic inches the most highly sought after of which being the ones with the 426 cubic inch Hemi. Cudas were only fitted with this engine in 1970 and 1971. Though Hemi Cudas are extremely rare themselves, the rarest are the convertible models. There were only 21 convertible Hemi Cudas produced. This was because the Hemi engine upgrade cost $871. Most people went with a 440+6 cubic inch model because it was only $250 more than the base model.