Techno Police 21C or Techno Police (テクノポリス21C Tekunoporisu Nijūisseki) is a Japanese anime made by Toho Productions and released to the theatrical screen in 1982. It was dubbed into English by Hong Kong voice actors.
This is an early anime presentation for a slightly older audience than that of children's cartoons, at a time when there wasn't much competition and before the clichés were established for this genre of action.
The anime was made during the Cold War, and so the tank was hijacked from a cargo plane resembling the B-2 bomber, and was designed to withstand the neutron bomb, even if its crew would be killed by that weapon, for the tank was computerized to continue to fight on its own. When out of ammunition, the tank would automatically explode.
One point which marks the animation studio of this film is that to save money there are many scenes which are monochromatic. When the hijackers are in the vehicle they stole, everything on screen is blue; when Eleanor starts to drive it back, everything on screen is red. Another scene towards the beginning has the Techno Police headquarters in blue.