I'm not autistic but I love tanks. Their history, the technical stuff, the politics behind them and so on.
I've driven through all of Germany and back in one weekend to go the Panzermuseum Munster and I've been to the Bovington Tank Museum twice and really want to go again.
My apartment is full of Cobi tank models, I have like ten different tank themed t-shirts and at least two hoodies and a Christmas sweater.