Ok, no one is getting this, so I'll post the answer, Remember, I said first muscle car, not hot rod. Rocket 88, a hit for Jackie Brenston with Ike Turner. Widely credited by music historians as the first Rock & Roll song, & the Rocket 88 marked the first time an american auto maker out thier top of the line motor in a mid-size car, the most common definition of a "muscle car"