eh eh eh,,,,amazing how some of the guys know just which car is being talked about by it's "number". Are we fanatics or what (former owner Excalibur #33). Which was the 33rd car made by that company, all the Excal guys know that of course!
SPF number I believe does in fact state the number of the car made! #747 was just that! As you learn more about the manufacturer in question you can tell things like:
After SPF car number 1000 or so there was a change in the specs.
FFR number IS the number of the car. What are they up to now? 4000 or something?
CSX4000 series car are are the most current group (continuation cars). Early one have a number like 4010, the later ones are higher. CSX2000 started it all, wouldn't CSX2001 be a cool car! 3000 series were 427 models. 7000 series are the FIA style cars (I think), so they will have a very low number due to limited production.
Some car numbers are kind of meaningless as some folks don't even know WHO made the car!
Aren't "vin" numbers fun!!
Ernie