Well, this is one of the most interesting areas of the museum, and if my information is correct, it is normally closed for the public. Except on Tank Fest!
Lots of spare parts, lots of tanks and other vehicles in various states of direpair… things you can’t usually see: T14 Heavy Tank, Conway tank destroyer and many other vehicles I have only heard about.
The only problem was room: it was difficult to squeze through the tanks and take half-decent photos. The exhibit is also so very useful as a reference for scratches, faded paint, paint chips, oil stains, dust and rust.
Wargaming set up a World of Tanks event here: you were allowed to play thirty minutes on a press account, and you got a code for a Churchill III, a T-shirt, and a backpack. (Not very sturdy ones, but still.)
I managed to try the FV4005 (presently grinding for it), and the Defender -to see how OP it is. In my hand it was not very… Unfortunaltely I had no time to try the rare, or never released tanks also in the garage of the account.
Keep an eye out -more photos are incoming.