Utility
Neither the Toyota nor the GLK-Class has a marked advantage regarding seating capacity.
The Toyota 4Runner outpulls the Mercedes-Benz by a sizeable margin.
Dimensions
Your wallet will hurt more every time you fill up the Toyota 4Runner than the GLK-Class because of its bigger tank.
The Mercedes-Benz GLK-Class and the Toyota 4Runner compete for the same parking spaces.
Convenience
You'll most certainly have to take the Mercedes-Benz GLK-Class for a fill-up more often than the Toyota 4Runner because of its tank size and fuel economy.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs about the same to get the Toyota to the dealership as the Mercedes-Benz GLK-Class.
The Toyota 4Runner won't save you much money at the pump compared to the GLK-Class.
The Mercedes-Benz GLK-Class isn't much more expensive than the Toyota 4Runner when it comes to MSRP.
Handling
With their comparable turning radii, the Toyota 4Runner and the Mercedes-Benz GLK-Class most certainly handle approximately the same into and out of tight spots.
Drivetrain
The Mercedes-Benz GLK-Class's engine is somewhat smaller than the 4Runner's, but not terribly so.
Comfort
While the front cabin in the Mercedes-Benz GLK-Class offers a bit more head room than the Toyota 4Runner, there honestly isn't much of a difference.
The Mercedes-Benz GLK-Class offers more head- and leg-room to your passengers than the 4Runner does.
Warranty
The basic warranty that comes with the Toyota 4Runner isn't quite as generous as the GLK-Class's.