The Armoured Car was Da Vinci's most famous war weapon. Throughout the years it has taken modifications like no other. Da Vinci's Armoured Car was a 8 maned vehicle. There were cannons evenly distributed in a 360 degree range. 4 men to move it and 4 men to fire the cannons. Just like the Tank today the Armoured Car had metal plating on it. Even though the Armoured Car was designed beautifully. It had one flaw. The flaw was there for a reason. It took too much effort to rotate the Car in a stationary state. Due to this the Car had very little use in battle. The Tank is the result of the modifications to Da Vinci's Armoured Car. Instead of having four wheels to maneuver the vehicle. The Tank has two traction belts that can overcome any terrain. Both vehicles have one central cannon surrounded by smaller cannons or machine guns.
David Kujit. Da Vinci Condotta (July 21, 1998). Retrieved November 25,2011. From http://www.umiacs.umd.edu/~kuijt/dba169x/dba169x.html