Performance
In terms of horsepower, the GMC packs quite a wallop and will knock the Toyota Highlander Hybrid down a few rungs. On the flip side, bear in mind that high horsepower engines often command higher insurance premiums.
With that kind of horsepower, the GMC Yukon is a true sports car.
Drivetrain
The Toyota's engine is significantly smaller than the GMC Yukon's. Note that a smaller engine usually has to work a little harder; on the other hand, smaller engines typically get better gas mileage.
The Toyota Highlander Hybrid could learn a lesson or two from the GMC Yukon when it comes to torque.
Torque equals pickup, and the GMC Yukon will have picked up and gone by the time the Toyota Highlander Hybrid finally gets moving.
Utility
The GMC Yukon will most certainly prove more convenient than the Toyota Highlander Hybrid for those of you with frequent kid-cargo.
The GMC Yukon is likely a better choice than the Toyota Highlander Hybrid with respect to transporting cargo, especially if you often need to carry a lot of suitcases or large pets.
Towing is substantially more the GMC Yukon's forte than it is the Toyota Highlander Hybrid's.
Convenience
You'll definitely take the Toyota Highlander Hybrid for a fill-up approximately as often as the GMC Yukon.
Comfort
While the front cabin in the GMC Yukon offers a bit more head room than the Toyota Highlander Hybrid, there frankly isn't much of a difference.
Dimensions
The GMC Yukon is significantly heavier than the Toyota Highlander Hybrid.
Your wallet will hurt more every time you fill up the GMC Yukon than the Toyota because of its larger tank.
The Toyota Highlander Hybrid and the GMC Yukon 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 Toyota Highlander Hybrid is significantly cheaper to get to the dealership than the GMC Yukon.
As far as fuel economy, the Toyota Highlander Hybrid has the GMC Yukon beat.
The Toyota will save you money at the pump compared to the GMC Yukon.
With respect to MSRP, the Toyota Highlander Hybrid doesn't cost much less than the Yukon.
The Toyota Highlander Hybrid will save you a bundle at the pump every year compared to the GMC Yukon.
The GMC Yukon will cost you a bundle in gasoline every year compared to the Toyota Highlander Hybrid.
Overview
The Toyota Highlander Hybrid and the GMC Yukon have the same basic warranty.