twobjshelby's, good catch, I'm not familiar enough with the details of a CSX1000 series car to make that call, but it would certainly be a worthy contender.
Depending on additional specs, it takes more than just a body and frame. Suspension components, dash design and gauges, interior appointments, wiring details, engine specs, etc. Suffice to say, very few cars would meet an exacting definition of the word.
Over the years there have been a few examples of other vehicle replica's that are truly breath taking in their level of detail to accuracy, but not many.
"Close enough" for most of us, usually means the body shape and contours alone is all it takes. I'm OK with that,,, just musing on a concours level of accuracy. Like when you've got 5 or 6 SAAC judges/inspectors crawling all over the car and decucting points for using the wrong bolt or nut.