That's it, pnegyesi got it!
The Yotoda (called Yotoda Jedi in the adverts when it was put for sale, but I haven't seen it referred to by that name anywhere else) is a Toyota Land Cruiser J9 Diesel underneath. As pnegyesi said, it was built by the eXpedycja.pl team and competed in various local races and the 2013 Polish Cross-Country Rally Championships.