Performance
With that kind of horsepower, both the GMC and the HUMMER H3 SUV are genuine speedsters.
Handling
With their similar turning radiuses, the HUMMER H3 SUV and the Yukon most certainly handle almost the same into and out of tight spots.
Drivetrain
The GMC Yukon's engine is significantly more massive than the HUMMER's. Remember that bigger engines may use more gasoline than smaller ones.
Torque equals pickup, and the GMC Yukon will have picked up and gone by the time the HUMMER H3 SUV finally gets moving.
The GMC Yukon packs quite a wallop compared to the HUMMER H3 SUV when it comes to torque, which is roughly equivalent to acceleration.
Utility
Drivers with frequent kid-duty might favor the GMC Yukon over the HUMMER H3 SUV.
The GMC Yukon is a better choice than the HUMMER H3 SUV as far as hauling capacity, especially if you frequently need to carry a lot of gear or big pets.
There's little the HUMMER H3 SUV can tow that the GMC Yukon cannot.
Convenience
You'll quite certainly have to take the HUMMER H3 SUV for a fill-up more often than the GMC Yukon because of its tank size and gas mileage.
Comfort
While the front cabin in the GMC offers a bit more head room than the HUMMER H3 SUV, there frankly isn't much of a difference.
The Yukon offers more head- and leg-room to your passengers than the HUMMER H3 SUV does.
Dimensions
The GMC Yukon is considerably heavier than the HUMMER.
The HUMMER H3 SUV's tank is about the same size as the Yukon's, though the GMC Yukon's is a bit larger.
The HUMMER and the GMC compete for the same parking spaces.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. The HUMMER H3 SUV is considerably cheaper to get to the dealership than the GMC.
Producing a precise fuel economy evaluation is so difficult that some think not even the federal government can do it, but it looks as though the GMC Yukon is the winner in terms of gas mileage.
The H3 SUV pales in comparison to the GMC Yukon with respect to gas mileage.
The H3 SUV isn't much less pricey than the GMC Yukon regarding MSRP.
Overview
The basic after-sale protection that comes with the GMC Yukon isn't quite as generous as the HUMMER H3 SUV's.