Performance
In terms of horsepower, the Subaru Impreza packs quite a punch and will knock the Toyota Matrix down a few rungs. On the flip side, remember that high horsepower engines often command higher insurance premiums.
Handling
With their comparable turning circles, the Subaru Impreza and the Toyota Matrix definitely handle about the same into and out of tight spots.
Drivetrain
The Toyota Matrix's engine is significantly smaller than the Subaru Impreza's. Bear in mind that smaller engines can be stressed more; on the other hand, smaller engines typically get better gas mileage.
Torque equals pickup, and the Impreza will have picked up and gone by the time the Toyota Matrix finally gets moving.
Utility
The Toyota Matrix and the Subaru Impreza can accommodate the same number of passengers.
Convenience
You'll quite certainly have to take the Toyota for a fill-up more often than the Subaru because of its tank size and fuel economy.
Comfort
While the front cabin in the Toyota Matrix offers a bit more head room than the Subaru Impreza, there really isn't much of a difference.
The ampler interior dimensions of the Matrix make it more spacious for your passengers than the Impreza.
Dimensions
The Impreza is tremendously heavier than the Toyota.
Your wallet will hurt more every time you fill up the Impreza than the Toyota Matrix because of its bigger tank.
The Toyota and the Subaru Impreza compete for the same parking spaces.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs almost the same to get the Subaru Impreza to the dealership as the Toyota Matrix.
There frankly isn't much of a difference in gas mileage here, but if you must know, the Toyota Matrix is somewhat more economical than the Subaru Impreza.
Regarding fuel economy, the Toyota Matrix is a little better than the Impreza, but not by much.
As far as MSRP, the Subaru Impreza costs considerably more than the Toyota Matrix.
Warranty
The Subaru and the Toyota Matrix have the same basic warranty.