Since the M46 cars are already included in both of the 1970 Hamtramck & LA registries, I went in & counted the ones I know of so far.
Information is not complete for all of theses, but as of today this is what I have on file;
I have records on 25 M46 Barracudas so far. Of these 25;
11 are from the Hamtramck plant
14 are from the LA plant
For the hard tops;
12 are known with the 318.
5 are known with the 383 2-barrel
5 are known with the 383 4-barrel
For the convertibles;
Two are known with the 318
One is known with the 383 2-barrel
These are the color & trim combinations I know of so far;
BL1 V1G H6T5
EB5 EB5 H6B5
EF8 EF8 H6F8
EV2 EV2 H6X9
EV2 EV2 H6X9
EV2 V1X H6X9
EV2 V1X H6X9
EV2 V3W H6XW
EW1 EW1 H6E4
FC7 FC7 H6X9
FC7 V3W H6XW
FE5 FE5 H6E4
FF4 FF4 H6F8
FF4 FF4 H6F8
FF4 FF4 H6T5
FJ5 FJ5 H6X9
FK5 FK5 H6X9
FK5 V1X ?
FT6 FT6 H6T5
FT6 FT6 H6X9
FY1 FY1 H6X9
FY1 V1X H4X9
FY1 V1X H4X9
FY1 V1X H6X9
FY1 V3X H6X9
Updated today with the FJ5 car, thanks to Cecil for sending in the broadcast sheet he found for it.