John
I think you will find that the 1500 from Willys were the MA model,
https://www.aulro.com/afvb/images/im...11/06/1452.jpg
the Ford ones likely the GP (without the W) as they made about 4.5K of that model
https://www.aulro.com/afvb/images/im...11/06/1453.jpg
and the Bantam the BRC-40
https://www.aulro.com/afvb/images/im...11/06/1454.jpg
The Toyoda made AK10 has more of a resemblance to the original 1940 Bantam prototype, and given that the plans were distributed to the US Army and both Ford and Willys-Overland could easily have been stolen.
https://www.aulro.com/afvb/images/im...11/06/1455.jpg

