IMT (USA, Tier-8, MT, premium) With the release of update 1.28, the IMT will be tested in random battles by developers and supertesters.
Historical Reference:
After World War II, the US military command requested a new tank to replace the Sherman. The Improved Medium Tank (IMT) was to have strong armor located at rational angles and a low silhouette providing additional protection. It was assumed that the vehicle would weigh no more than 45 tons, and its specific power would be 20 hp/t.
The armament would include a 105 mm cannon with vertical and horizontal stabilization, as well as six machine guns. An optical rangefinder and radar were also planned.
The project was deemed unpromising, but many of the technical developments were used in other American tanks. 
An interesting look at the new changes in World of Tanks and the appearance of IMT in testing. I see that many players are waiting for new historical vehicles, and it is always cool when the game adds such elements. I think such changes will definitely attract attention to the game, and those who follow new updates will be the first to appreciate the new tanks and their features.
If you want to always be aware of such updates and not miss important news, you can set up push notifications for news. Services such as Gravitec.net web push notifications allow you to receive notifications about new articles, tests and events directly on the screen, without having to constantly check the sites. This is a great way to stay up to date and not miss important information. Has anyone already tried such notifications for game news?
And why did they think they needed 6 or so machineguns on that thing?
Cause machine guns on tanks look cool.