Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. The CX-9 is considerably cheaper to get to the dealership than the Toyota 4Runner.
Regarding gas mileage, the 4Runner and the Mazda don't differ much.
The Mazda CX-9 won't save you much money at the pump compared to the Toyota 4Runner.
The Toyota 4Runner isn't much more expensive than the Mazda CX-9 when it comes to MSRP.
Utility
The Mazda CX-9 will most certainly prove handier than the 4Runner for those of you with frequent kid-cargo.
Towing is substantially more the Toyota's forte than it is the Mazda CX-9's.
Convenience
The Mazda CX-9's fuel tank will need to be replenished more often than the unit in the Toyota 4Runner.
Comfort
While the front cabin in the Toyota 4Runner offers a bit more head room than the Mazda, there frankly 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 Toyota.
Dimensions
Your wallet will hurt more every time you fill up the 4Runner than the Mazda CX-9 because of its bigger tank.
The 4Runner and the Mazda CX-9 compete for the same parking spaces.
Drivetrain
The Mazda and the Toyota 4Runner have similar-sized engines, with a slight advantage to the Toyota 4Runner.
Torque is the force that lets you accelerate quickly, and in this respect, the Mazda CX-9 isn't much more powerful than the 4Runner.
The Toyota has no lessons to learn in terms of torque from the Mazda CX-9.
Overview
The Toyota 4Runner and the Mazda CX-9 have the same basic warranty.