OKB Grigorov released two (2) more 1/72 scale kits from this series of British heavy assault tank designs proposed by Nuffield Mechanizations and Aero Limited during the latter part of WWII. Of the eighteen (18) proposed designs, OKB Grigorov has released ten (10) of these variants in kit form.
This is partial text from the full article (usually with photos) at https://armorama.com/news/okb-grigorov-nuffield-a-t--14-and-a-t--15