If memory serves me correctly, there is a “Cobra” connection with the five 1990 movie "Memphis Belle" B-17s.
In an effort to make the later manufactured B-17Gs to appear like the earlier “F” models, the production folks with “Belle” movie contracted Brian Angliss of Autokraft Brooklands Ltd., Weybridge, UK to build 4 or 5 “authentic” replacement early B-17F stingers.
At that time, Angliss was building the Autokraft MKIV, a “spiritual” continuation of
THE Shelby 289/427 AC Cobra in his Brooklands industrial park facility.
He was at that time the owner of the “AC” trademark rights and of some of the original Thames Ditton factory production bucks for the original Shelby/AC Cobra.
His expertise in aluminum panel beating made him a logical choice.
The Autokraft MKIV cars are considered to be real Cobras (even if they can't use the Cobra name) and are listed in the Cobra registry. If you can't own a B-17, why not own a Cobra? It gets better fuel economy. Nice picture of an Autocraft MKIV here:
http://mycarquest.com/2013/06/the-ac-cobra-mk-iv-what-a-terrific-car.htmlOnly the former Bob Richardson B-17F-70-BO 42-29782 N17W was an “F” model. Check out the "stinger" in it's "fire bomber" days:

Makes you wonder what happened to the 4 Cheyenne tail turrets from the “G”s (assuming that they still had their turrets).
the Cheyenne assemblies were modified to look like the stingers which is ironic in that when the birds went through the modification center the stingers were modified into the Cheyenne.all the birds have the late model yoke in the stingers and are really different from the stinger yokes not to mention the extra frames 11G and 11 J.