Tracked Hummer Tank SEMA: Hummer H2T concept this Hummer Tank caught my eyes, which with the tank treads and in green-and-black color. This Tracked Hummer Tank SEMA: Hummer H2T automotive concept tank-like twist on the original gas guzzler crawled into the 2008 SEMA auto show in Las Vegas, and immediately turned heads. Tracked Hummer Tank SEMA: Hummer H2T concept similar to the all-terrain rubber tracks on snowmobiles, this concept H2T …