[2] The program was later renamed as VK 30[a] and were developed to varying degrees by four different companies: Porsche, Henschel, MAN, and Daimler Benz.

[3] Shortly after the beginning of the war on 1 September 1939, Ferdinand Porsche was appointed chairman of the Panzerkommission, an advisory group of engineers and industrialists created by Adolf Hitler to advise him on future tank designs.

[4] Porsche chose to use a gasoline-electric drivetrain in his Typ 100 tank to eliminate the need for a mechanical transmission, which he felt weren't strong enough for such heavy vehicles.

Two air-cooled V-10 Porsche Typ 100 gasoline engines, mounted in the rear of the tank, were each connected to an electric generator.

[5] Krupp were directly contracted by Porsche to produce the turret to house the 57-caliber 8.8-centimetre (3.5 in) KwK 36 gun and the two teams worked together to develop it for the VK 30.01 (P) chassis.