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 Dodge to the dealership as the Mazda MAZDASPEED3.
In terms of gas mileage, the Mazda is a tad better than the Dodge, but not by much.
Regarding MSRP, the Dodge Challenger costs substantially more than the Mazda MAZDASPEED3.
Utility
Neither the Mazda MAZDASPEED3 nor the Dodge Challenger has a marked advantage when it comes to seating capacity.
Convenience
The Mazda MAZDASPEED3's fuel tank will need to be replenished more often than the unit in the Dodge Challenger.
Comfort
While the front cabin in the Dodge offers a bit more head room than the Mazda MAZDASPEED3, there frankly isn't much of a difference.
The ampler interior dimensions of the MAZDASPEED3 make it substantially more spacious for your passengers than the Dodge Challenger.
Dimensions
Your wallet will hurt more every time you fill up the Dodge Challenger than the Mazda MAZDASPEED3 because of its bigger tank.
The Mazda MAZDASPEED3 and the Challenger compete for the same parking spaces.
The Dodge Challenger's longer wheelbase will likely result in a smoother, more stable ride; on the other hand, the MAZDASPEED3 may give a more agile feel in daily traffic.
Performance
Regarding horsepower, the Dodge packs quite a punch and will knock the Mazda down a few rungs. On the other hand, remember that high horsepower engines often command higher insurance premiums.
Handling
With their similar turning radii, the Dodge Challenger and the Mazda MAZDASPEED3 most definitely handle roughly the same into and out of tight spots.
Drivetrain
The Mazda MAZDASPEED3's engine is tremendously smaller than the Challenger's. Note that a smaller engine usually has to work a little harder; on the flip side, smaller engines are often cheaper to fix.
Warranty
The Dodge Challenger and the Mazda MAZDASPEED3 have the same basic after-sale protection.