I have 2 books both with information on the Panzer Maus (moose). I was a super-heavy tank which weighted 185 tons. I have tons of stats on it (how much armour and where, performance, dimensions etc.)
** The panzer maus never saw active service though, only 2 not 4 were completed and were in trials with 9 more underconstruction. The finished 2 only made it to the testing phase and were destroyed by the germans themselves in April 1945 before the soviets could capture them.
Ps. The Maus IS just a pillbox on wheels it could make only 7mph cross-country, 12.5 mph on roads and needed a seperate trailor to tow its 15cm (154 lb) shells.