The Way They Did Things Back Then… Cougar Horn Emblem Blueprint The original design drawings for the special components that were used to turn a regular Cougar into an XR7-G are now available in the documents section of this site. The documents are downloadable PDF files and were produced from scans of the original 40-year-old blue prints. It amazes me that these documents survived for all of these years. From what I have been able to piece together, this story begins in about 1970.