Utility
The Mazda MAZDA6 and the Mercury Milan can accommodate the same number of passengers.
Performance
In terms of horsepower, the Milan packs quite a punch and will knock the Mazda MAZDA6 down a few rungs. On the flip side, keep in mind that high horsepower engines often command higher insurance premiums.
Dimensions
The Mercury Milan's tank is approximately the same size as the Mazda MAZDA6's, though the Mazda MAZDA6's is a little bigger.
The Mercury Milan and the Mazda MAZDA6 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 roughly the same to get the Mercury to the dealership as the Mazda MAZDA6.
When it comes to MSRP, the Mercury Milan costs roughly as much as the Mazda MAZDA6 (though the Mazda MAZDA6 is a bit cheaper).
Handling
With its tighter turning radius, the Mazda MAZDA6 is definitely nimbler than the Mercury Milan, something to consider if you do a lot of city driving; on the flip side, bear in mind that a vehicle with a tight turning circle may feel a bit twitchy on the highway.
Drivetrain
The Mazda has no lessons to learn when it comes to pickup from the Mercury Milan.
Comfort
While the front cabin in the Mazda MAZDA6 offers a bit more head room than the Mercury, there frankly isn't much of a difference.
The Mazda MAZDA6 is not particularly more spacious for your passengers than the Mercury Milan.
Warranty
The Mercury Milan and the Mazda MAZDA6 have the same basic after-sale protection.