I don't know the source anymore as it's from something I read long ago and was just ringing in the back of my head. Seeing as there doesn't seem to be any evidence of such trials, I guess I must have read somewhere a comparisson between the P-51D and CA-15 and somehow in my memory that must have started leading a life of its own!
Yes, I know the head-on CA-15 shot from the Lincoln. A very nice photo indeed. I was indeed planning on an artwork, but I guess I'll settle for an image of the CA-15 on its own.
Thanks for your reply, Michael!