There are no details of this tank, which could be from the Soviet Era. The picture finder says that some people suggested is a fog/smoke generator but, for its looks, it could be an armored antimatter cannon. [Updated: Target identified]
Please excuse our current obsession with badass futuristic and retro-futuristic bikes, but waiting for Tron Legacy is killing us. However, not all sci-fi bikes are as sleek as Tron's. Like the original Galactica's Turbocycle. There's nothing sleek about this horror.