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 Subaru Tribeca to the dealership as the CX-9.
The Mazda CX-9 doesn't pale in comparison to the Tribeca with respect to fuel economy.
Producing an accurate gas mileage evaluation is so tricky that some think not even the federal government can do it, but it looks as though both the Mazda and the Mazda perform about similarly in terms of fuel economy.
In terms of MSRP, the Mazda CX-9 costs about as much as the Subaru Tribeca (though the Subaru Tribeca is a little cheaper).
Utility
Neither the Mazda nor the Subaru Tribeca has a marked advantage in terms of seating capacity.
Convenience
You'll most certainly have to take the Subaru Tribeca for a fill-up more often than the CX-9 because of its tank size and gas mileage.
Comfort
While the front cabin in the Mazda CX-9 offers a bit more head room than the Subaru Tribeca, there honestly isn't much of a difference.
The ampler interior dimensions of the Mazda CX-9 make it substantially more spacious for your passengers than the Tribeca.
Dimensions
Your wallet will hurt more every time you fill up the Mazda CX-9 than the Subaru Tribeca because of its bigger tank.
The Subaru Tribeca and the Mazda CX-9 compete for the same parking spaces.
Drivetrain
The Subaru Tribeca and the CX-9 have similar-sized engines, with a slight advantage to the CX-9.
Warranty
The Tribeca and the CX-9 have the same basic warranty.