Ford Mustang, Dodge Challenger, Chevrolet Camaro; three muscle cars that have been most commonly lumped together as competitors over the years. The Camaro's next-generation in particular has been rendered for years by enthusiasts eager to see the car be reborn to do battle against the Camaro. But, we're forgetting another muscle car-type vehicle that was in the mix: the Plymouth Road Runner. Could it ever be reborn again? Good luck, the chances of the Plymouth brand being resurrected are absolutely nil. But, that doesn't make it any less cool imagining what one could be like, does it? A year ago, magazine Mopar Enthuiast featured the Plymouth Road Runner concept on it's front cover. The design and rendering work was done by Austrian designer Michael Leonhard. Leonhard envisions a