Insight On A Tank That Never Was (Landkreuzer P. 1500 Monster)

The Landkreuzer P. 1500 Super-heavy tank was designed in late 1942 by Krupp, it was presented to Hitler, who approved the tank for production.
Nevetheless it was cancelled in 1944, by Minister for Armaments Albert Speer.
The massive tank would have had more negative sides than positive.
Some specifications of the tank was:

Weight: 1.5 Kilotonnes (1500 tonnes)
Lenght: 42 m
Width: 18 m
Height: 7 m
Crew: 100+
Speed: 15 km/h
Armor: 250mm
Primary Gun: 1x800mm (Same as the k5 Dora/Gustav Railway gun)
Secondary armament: 2x 15cm sFH 18/1 L/30 Howitzer
and multiple 15mm MG15 Machineguns
With a 2.200 hp engine.

This tank would obviously meet problems at the battlefield, possibly destroying roads where it drove, problems with crossing bridges, not to forget the problems of moving the tank across bigger areas, the danger of allied aircrafts would also make it a major target.

An 800mm Shell (also used for the massive Siege gun "Schwerer Gustav") it would have been used for the Landkreuzer P. 1500 Monster, was it ever build.

The Landkreuzer P.1500 Monster, next to the Panzer VIII Maus (The biggest and Heaviest tank built in World War II)