Yes they did, not to take away from the fact this is one sweet build though. Officially, Ford never stuffed its Boss 429 V-8 between the fenders of a Mercury Cougar, but that’s not to say that none were built in this configuration. In fact, two cars destined for the drag strip ran the feared engine, and one of them will appear at this year’s Ford Carlisle. As the Super Stock ranks featured more and more factory support in the late 1960s, Ford, looking for a competitive edge against Chrysler, commissioned skunk works builder Kar Kraft to build two 1969 Boss 429 Mercury Cougars and then sold them to drag racers “Dyno Don” Nicholson and “Fast Eddie” Schartman for the princely sum of $1 each.