The December Cobra reminds me of the red cobra for sale in the back pages of an old issue (early 70's) of Motor Trend. Maybe in 1971?
I dunn'o, does $10,000.00 seems right for that time period? It was identical (red, no stripes, front bumbers, and no hood scoop, (POSSIBLY CSX3187)) except that it had white side pipes. I wish I still had that old magazine today, or $10,000.00 back in 1971 to purchase it even better.
Railton
(* Edited for truth*)