Cost
The Toyota Matrix pales in comparison to the Chevrolet Aveo with respect to gas mileage.
The Chevrolet will save you money at the pump compared to the Toyota Matrix.
The Toyota Matrix is tremendously more expensive than the Chevrolet Aveo as far as MSRP.
The Chevrolet Aveo will save you a bundle at the pump every year compared to the Toyota Matrix.
Utility
The Chevrolet and the Matrix can accommodate the same number of passengers.
Convenience
You'll most certainly have to take the Toyota Matrix for a fill-up more often than the Chevrolet Aveo because of its tank size and gas mileage.
Comfort
Taller drivers will considerably enjoy the extra head room in the Toyota's front cabin compared to the Chevrolet.
The Toyota Matrix provides more head- and leg-room to your passengers than the Chevrolet Aveo does.
Dimensions
The Chevrolet Aveo's tank is approximately the same size as the Toyota's, though the Matrix's is slightly larger.
The Chevrolet Aveo and the Toyota Matrix compete for the same parking spaces.
Performance
In terms of horsepower, the Toyota packs quite a punch and will knock the Chevrolet down a few rungs. On the other hand, note that high horsepower engines often command higher insurance premiums.
Handling
With its tighter turning circle, the Chevrolet Aveo is most certainly more agile than the Toyota Matrix, something to consider if you do a lot of city driving; however, keep in mind that a vehicle with a tight turning circle may feel a bit twitchy on the highway.
Drivetrain
The Chevrolet Aveo and the Matrix have similar-sized engines, with a slight advantage to the Matrix.
Torque equals pickup, and the Toyota Matrix will have picked up and gone by the time the Chevrolet Aveo finally gets moving.
Overview
The Toyota Matrix and the Aveo have the same basic after-sale protection.