Hummer Mpg Why Does The Hummer SUT Version Of The H2 Get Worse Mpg, Worse Hp And Torque And Is Slower Than The Regular H2?

Why does the hummer SUT version of the H2 get worse mpg, worse hp and torque and is slower than the regular H2? - hummer mpg

One might think would be better than Regualr and weighing less.