Apparently, a guy in Huizhou, China decided to build an incredibly detailed 5-ton steel model of Megatron in tank mode from Transformers 2. And, well, that's just what he did.
This thing is damned terrifying. Luckily, it's a mere model and not a functioning tank. Or even worse, a functioning Decepticon. I'm not quite sure why someone would dedicate this much time and energy to building something like this, but hey, power to him for really going for it.