From the chassis plate under the engine bay we can now officially identify the car and get an insight into it’s origins.
According to an online source the meaning of the Cadillac chassis plates are as follows:
First Digit:
Code –ย 6
GM Division –ย Cadillac
Second Thru Fifth Digits:
8169 –ย Fleetwood Sixty Special Brougham
8247 –ย 2 dr. Calais Coupe
8249 –ย 4 dr. Calais Sedan
8347 –ย 2 dr. Coupe DeVille
8349 –ย 4 dr. Sedan DeVille
9347 –ย 2 dr. Fleetwood Eldorado Hardtop Coupe
9367 –ย 2 dr. Fleetwood Convertible
9723 –ย 4 dr. Fleetwood “75” Sedan
9733 –ย Fleetwood Limo
9890 –ย Commercial Chassis
Sixth Digit:
Code –ย 1
Model Year –ย 1971
Seventh Digit:
Q –ย Detroit, MI
E –ย Linden, NJ
Last Six Digits:
Production Numbers –ย 100001/^ 421298
So the origins of our car are as follows:
6 – Cadillac
9367 – 2 door Fleetwood convertible
1 – 1971
Q – Detroit MI
421298 – Production number