It's always encouraging to see how far 3-D printing has come, especially when it's used to good effect on British armour. If you skip a bit of the chatter at the beginning of the video, you'll see an excellent working Scimitar unveiled
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I know someone who has one. The design that has gone into this is nothing short of amazing. Everything fits, and there are moulded bays for everything inside. The tracks are a pain to assemble, but it goes like a mad thing and doesn't fall apart. Knowing how much work must have gone into the CAD design, it is an excellent model, and it works very well.