Cost
In terms of MSRP, the Ford Shelby GT500 costs tremendously more than the Mustang.
With respect to out-the-door price, the Ford Shelby GT500 costs tremendously more than the Ford Mustang.
Utility
Neither the Ford Shelby GT500 nor the Ford Mustang has a marked advantage in terms of seating capacity.
Comfort
While the front cabin in the Ford Shelby GT500 offers a bit more head room than the Ford Mustang, there honestly isn't much of a difference.
The Shelby GT500 is not particularly roomier for your passengers than the Mustang.
Dimensions
The Ford Shelby GT500 is considerably more ponderous than the Mustang.
The Ford Mustang and the Ford Shelby GT500 compete for the same parking spaces.
Performance
Regarding horsepower, the Ford Shelby GT500 packs quite a wallop and will knock the Ford Mustang down a few rungs. On the other hand, remember that high horsepower engines often command higher insurance premiums.
With that kind of horsepower, the Ford Shelby GT500 is a genuine sportscar.
Handling
The Ford Shelby GT500 has substantially bigger tires than the Ford Mustang. Keep in mind that wider tires can look and feel better, while narrower tires might provide better handling in deep snow.
Drivetrain
The Ford Shelby GT500's engine is significantly more massive than the Ford Mustang's. Note that larger engines may use more gasoline than smaller ones.
Torque equals pickup, and the Ford Shelby GT500 will have picked up and gone by the time the Mustang finally gets moving.
Torque is the force that lets you accelerate quickly, and in this respect, the Ford Shelby GT500 is tremendously more powerful than the Ford Mustang.
Overview
The Ford Mustang and the Ford Shelby GT500 have the same basic warranty.