Utility
Neither the Pontiac nor the Dodge Caliber has a marked advantage with respect to seating capacity.
Performance
Regarding horsepower, the Caliber packs quite a wallop and will knock the Pontiac G3 down a few rungs. However, keep in mind that high horsepower engines often command higher insurance premiums.
Dimensions
The Pontiac's tank is almost the same size as the Dodge Caliber's, though the Dodge Caliber's is a tad larger.
The Pontiac G3 and the Dodge Caliber compete for the same parking spaces.
Convenience
The Dodge Caliber's fuel tank will need to be replenished a tad more often than the unit in the Pontiac G3.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. The Dodge Caliber is significantly cheaper to get to the dealership than the G3.
Producing a precise fuel economy evaluation is so tricky that some think not even the federal government can do it, but it looks as though the Pontiac G3 is the winner in terms of gas mileage.
The Pontiac G3 is significantly less expensive than the Caliber when it comes to MSRP.
Handling
With their similar turning circles, the Pontiac G3 and the Dodge likely handle about the same into and out of tight spots.
Drivetrain
The Pontiac and the Dodge Caliber have similar-sized engines, with a slight advantage to the Dodge Caliber.
Torque is the force that lets you accelerate quickly, and in this respect, the Caliber is significantly more powerful than the G3.
Comfort
While the front cabin in the Dodge Caliber offers a bit more head room than the Pontiac G3, there frankly isn't much of a difference.
While the rear of the Dodge Caliber offers a bit more head- and leg-room than the Pontiac G3, there frankly isn't much of a difference.
Warranty
The Caliber and the Pontiac G3 have the same basic after-sale protection.