A prototype was built but got bogged down when testing. People also realised that it was too vulnerable to artillery. Here is an
article on it.
Other countries have also experimented with big wheel designs.
Still, I think it would look great on a wargame table.
Here is another verhicle but this one is fantasy by HG Wells:
http://www.currell.net/models/ironclad.htm
By the way, I believe the modern NATO definition of main battle tank would accept it as a tank since it\'s function based (vehicle primarily designed for assualt under it\'s own power, armour and arnament). Tracks are not a requirement any more (they had problems figuring out where to fit the Italian centauro
). Not sure if at that time it should be seen as tank or armoured car, but if it\'s tank, then the Russians beat the British to building the first one. It predates little Willie.