Leonardo da Vinci design began in 1487 for the armored car, at the time the duke of Milan, Ludovico Sfroza  asked him to  make armored chariots that would intimidate the enemy and help his soldiers conquer without stopping. Leonardo da Vinci began working on the armored car, it would use a crank system, would have a 360 degree field of view, carry cannons, and would be placed on a platform that was covered in metal plates.  Leonardo Da Vinci's armored car did have flaws though, these include weak wheel, would sag in soft terrain, it would stumble in mountainous terrain, the peepholes didn't function properly, and it was very slow. 

The invention of the tank was the modern-day influence of Leonardo da Vinci's armored car. the first tank ever produced was Little Willie in 1915 during WW1, during this time, war was changing, and both sides of the war were using tanks. Today armored warfare is still changing in the form of advances in technology, for example, the Abrams X, the Abrams X is America's new development in armored warfare.