Performance
In terms of horsepower, the Ford Focus packs quite a punch and will knock the Yaris down a few rungs. On the other hand, bear in mind that high horsepower engines often command higher insurance premiums.
Handling
With its tighter turning radius, the Toyota Yaris is most certainly nimbler than the Ford Focus, something to consider if you do a lot of city driving; on the other hand, bear in mind that a vehicle with a tight turning circle may feel a bit twitchy on the highway.
Drivetrain
The Ford Focus has a more massive engine than the Toyota Yaris. Remember that smaller engines typically get better gas mileage, but smaller engines can be stressed more.
Torque is the force that lets you accelerate quickly, and in this respect, the Ford Focus is substantially more powerful than the Yaris.
Utility
Neither the Toyota Yaris nor the Ford Focus has a marked advantage as far as seating capacity.
Convenience
You'll quite certainly take the Toyota Yaris for a fill-up approximately as often as the Ford Focus.
Comfort
While the front cabin in the Toyota offers a bit more head room than the Ford Focus, there frankly isn't much of a difference.
The Ford Focus offers more head- and leg-room to your passengers than the Toyota Yaris does.
Dimensions
Your wallet will hurt more every time you fill up the Focus than the Toyota Yaris because of its larger tank.
The Toyota fits in smaller parking spaces than the Ford.
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 Ford Focus to the dealership as the Toyota Yaris.
Regarding fuel economy, the Toyota Yaris has the Ford beat.
The Focus won't tax your gasoline budget considerably more than the Toyota Yaris will.
The Focus is substantially more expensive than the Toyota Yaris as far as MSRP.
Overview
The Focus and the Toyota Yaris have the same basic warranty.