Utility
Neither the Chevrolet Cobalt nor the Toyota Yaris has a marked advantage as far as seating capacity.
Performance
Regarding horsepower, the Chevrolet Cobalt packs quite a punch and will knock the Toyota down a few rungs. However, keep in mind that high horsepower engines often command higher insurance premiums.
Dimensions
Your wallet will hurt more every time you fill up the Chevrolet Cobalt than the Toyota Yaris because of its bigger tank.
The Yaris fits in smaller parking spaces than the Cobalt.
The Toyota's shorter wheelbase will likely give a more maneuverable feel in daily traffic. On the flip side, the Chevrolet Cobalt is likely to have a smoother, more stable ride.
Convenience
The Toyota Yaris's fuel tank will need to be replenished a bit more often than the unit in the Chevrolet Cobalt.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs approximately the same to get the Chevrolet Cobalt to the dealership as the Toyota Yaris.
The Chevrolet Cobalt will tax your gasoline budget substantially more than the Toyota Yaris will.
Regarding MSRP, the Cobalt costs considerably more than the Toyota.
Handling
With their similar turning circles, the Toyota Yaris and the Cobalt most certainly handle almost the same into and out of tight spots.
Drivetrain
The Chevrolet has a bigger engine than the Toyota Yaris. Note that smaller engines typically get better gas mileage, but smaller engines can be stressed more.
Torque is roughly equivalent to acceleration, and in this respect, the Cobalt is considerably more powerful than the Toyota.
The Chevrolet Cobalt packs quite a punch compared to the Toyota Yaris regarding torque, which is the force that lets you accelerate quickly.
Comfort
While the front cabin in the Toyota Yaris offers a bit more head room than the Chevrolet, there frankly isn't much of a difference.
The ampler interior dimensions of the Toyota make it more spacious for your passengers than the Cobalt.
Warranty
The Toyota Yaris and the Chevrolet have the same basic after-sale protection.