Andy's Hobby Headquarters from the USA will release a model of the M3/M3A1 halftrack in 1/16 scale:
M3/M3A1 U.S. Halftrack (catalog number AHHQ010)
This is partial text from the full article (usually with photos) at https://armorama.com/news/new-m3-m3a1-in-1-16-scale