Cal,
I'll bet that most people don't even know what the J-Car looked like....and the fact that Remington took that J-car design after Miles was killed in it in late 1966, and in just a few short months completely redesigned it from chassis to body configuration, to become the MK4 to race it for the first time at Sebring in March 1967.
To top that off, everyone at Shelby American believed that with the MK4, it was the first time that the team felt properly prepared and ready to race at LeMans,...something that they did not feel when they raced previously with the MK1 or MKII's.
Below is a shot of the J-car, then the winning MK4:
