From across the lot it looks gentle: a soft metallic mauve convertible you’d expect to find with a picnic basket in the trunk. But V8TV calls this 1966 Plymouth Belvedere II the Big Bad Wolf in Granny’s nightgown, because a 425-horsepower 426 HEMI lurks under the hood. Plymouth built only ten HEMI drop-tops that year, and this is the sole one wearing color code 661. One of ten becomes one of one. See why the pink is no punchline.