The Vickers 6 Ton tanks were built as a private venture. The British Army did confiscate the ones that had been ordered by overseas customers and couldn't be delivered because of the events in the war.
The suspension was double bogies with leaf springs. Had a firewall between the crew and engine compartments. Designed with an internal communication system (Laryngophone) for communication between the crew.,7
Engine was at rear with drive sprocket in front with the steering being by clutch and brake.