Panasonic tends to refresh internals while keeping externals the same, although performance still sucks.
This variant was once offered in the US market something like a decade ago for "business-rugged" use under the Toughbook brand, but that magnesium exterior shell commanded a high price point; I suspect the ThinkPad T series would have been a direct competitor at the time with better performance options and being much cheaper.
https://content.biz.panasonic.com/jp-ja/fai/15800/raw
This is not from a wayback machine copy of dynamism.com - this is a new, Windows 10 laptop in 2020 (!)