Jeff,
I never said it was the chassis number written on the trim pieces ??.I said it was a 'clue'.When researching a cars history,all 'clues' help.
Yes, I understand, but...
I once saw an Abarth with papers of original sale that noted the trim number amongst a whole lot of other specific information.
There can be more than one car over a run of similar-bodied cars produced by a coachbuilder that has that same "trim number" on it. Let's say coachbuilder "X" makes a first batch of cars of a certain body type. Then a second batch a little later. Then a third batch another year or two later.
From what I've learned, sequential coachbuilder ID numbering over an entire series run wasn't always the norm, so a car from the first batch might have the handwritten ID number of "32" on its' trim items, and another similar-bodied car from the third batch (made 1 or more years later ) might coincidentally have that same "32" ID number used on its' trim items.
Most of this info isn't really related to the actual chassis number, except for being a nice addition to the owners' "personal history" file on the car.
The original Fiat 600D chassis number
is the chassis number being asked for (and can often help verify the year of the car), which is why I mentioned it.
-JS.
