In 1911, he produced the first design of a cross-country fighting vehicle with swiveling gun turret (a tank), based on American agricultural tractor. He called the Motorgeschütz (literally "motor-gun"). His draft design, more advanced than some of the tank designs of World War I, was rejected both by Austria-Hungary and by the German Empire and no prototype was ever produced. He later sought to patent his design, but was told that it might infringe existing patents, so he dropped all plans.
Burstyn was christened "Günther," but in later life chose to omit the umlaut and use the name "Gunther".
- http://www.doppeladler.com/kuk/burstyn.htm. Biography (in German)