Back in the groovy days of 1964, Super Stock drag racing was all the rage with cars that looked normal but zoomed faster than a cheetah on roller skates. Enter the Factory Experimental class, where manufacturers got a little wild under the hood while keeping showroom appearances. This 1964 Mercury Comet is an A/FX beast, one of just 21 built. It’s still rocking the same “experimental” speed parts it had back then, like the roaring 425 HP high-riser 427 engine and lightweight fiberglass body panels.