Even though the two musclecars you are about to see in the video below were built at very different times (six years were the lot back in the day), this scene was probably pretty common on US drag strips in the era when all automakers were still relying on the track results when selling the passenger vehicles. We are talking about the 1969 Ford Mustang 428 Cobra Jet, one of only 243 such vehicles built that year, and the 1963 Chevrolet Impala SS fitted with the dual quad 409 engine. The lighter Mustang churns 335 hp under that long hood, and while the heavier Impala puts 425 horsepower to the ground. Different bodies, different figures, different class… but one heck of the duel if you ask us. We are not going to spill the beans over who won the two face-offs, and we advise betting on any of the two. It is a close call… One of the RAREST DRAG RACES Ever A 428 Cobra Jet Mustang vs. Impala SS 409.