What project was finished at a later date, Panzer VII Lowe or Panzer VII Maus?
Panzer VII Löwe: The Panzerkampfwagen VII Löwe (Lion) was a design for a super-heavy tank created by Krupp for the German government during World War II. Panzer VII Löwe:  The project, initially code-named VK 70.01 (K), never left the drawing board, and was dropped in 5–6 March 1942, in favor of Porsche's heavier Panzer VIII Maus. Panzer VIII Maus: Panzerkampfwagen VIII Maus ("Mouse") was a German World War II super-heavy tank completed in late 1944.
Panzerkampfwagen VIII Maus