Performance
With respect to horsepower, the Mercedes-Benz G-Class packs quite a wallop and will knock the HUMMER H2 SUT down a few rungs. However, remember that high horsepower engines often command higher insurance premiums.
With that kind of horsepower, both the Mercedes-Benz G-Class and the HUMMER H2 SUT are genuine speedsters.
Drivetrain
The Mercedes-Benz G-Class and the HUMMER H2 SUT have similar-sized engines, with a slight advantage to the HUMMER H2 SUT.
Torque equals pickup, and the Mercedes-Benz will have picked up and gone by the time the HUMMER H2 SUT finally gets moving.
Torque is roughly equivalent to acceleration, and in this respect, the Mercedes-Benz G-Class is significantly more powerful than the HUMMER H2 SUT.
Utility
Neither the Mercedes-Benz G-Class nor the HUMMER H2 SUT has a marked advantage regarding seating capacity.
The HUMMER H2 SUT is likely a better choice than the Mercedes-Benz G-Class as far as transporting cargo, especially if you frequently need to carry a lot of gear or dogs.
The HUMMER H2 SUT outpulls the Mercedes-Benz by a massive margin.
Comfort
Taller drivers will significantly enjoy the extra head room in the Mercedes-Benz G-Class's front cabin compared to the HUMMER.
The Mercedes-Benz G-Class provides more head- and leg-room to your passengers than the HUMMER H2 SUT does.
Dimensions
The HUMMER H2 SUT is substantially heavier than the Mercedes-Benz G-Class.
Your wallet will hurt more every time you fill up the HUMMER H2 SUT than the Mercedes-Benz because of its larger tank.
The G-Class and the HUMMER H2 SUT compete for the same parking spaces.
The G-Class's shorter wheelbase may produce a less-settled highway ride but a more agile feel in daily traffic than the HUMMER H2 SUT.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs almost the same to get the Mercedes-Benz G-Class to the dealership as the HUMMER H2 SUT.
The Mercedes-Benz G-Class is tremendously more expensive than the HUMMER H2 SUT when it comes to MSRP.
Warranty
The HUMMER H2 SUT and the Mercedes-Benz G-Class have the same basic after-sale protection.