"Those of you with long memories (or a GT40 fetish) will recall that Ford produced five open GT40s in 1965. Four were roadster versions of the existing coupe, and the other was the X-1, a wild, long-nosed, 427-cubic-inch V-8-engined machine with a cut-down windshield that was made for the United States Road Racing Championship. None were very successful, but the X-1 was rebodied to look like a Mark 2 roadster, in which guise it won the12 Hours of Sebring in 1966, driven by Ken Miles and Lloyd Ruby."
Courtesy of
http://www.automobilemag.com
Here is a better side-profile shot of it...
[image]http://www.viperalley.com/attach/data/1/607065-0601_ford_gtx1_03_900%20%28Medium%29.jpg[/image]