From Car Craft AUG 1972
 

Was it ever made/sold
Page 133 has a drawing with the following caption below it:
This latest offering from Yenko Sportcars, Inc., of Canonsburg, Ps., should satisfy the utilitarian urges of the pony car freaks. The Yenko Sport Wagon is based on a 350 SS Camaro and features complete warranty, Turbo-hydramatic, power steering, air-conditioning, sport suspension, tinted glass and special instrumentation. It might make a nice push car or you cast the body in fiberglass, put a fuel Chrysler in the back and...