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 Lincoln to the dealership as the Audi A6.
The Lincoln MKT won't tax your gas budget substantially more than the Audi A6 will.
The Audi A6 will save you money at the pump compared to the Lincoln MKT.
The Audi is significantly more expensive than the Lincoln MKT in terms of MSRP.
Utility
The Lincoln MKT will most certainly prove handier than the Audi for those of you with frequent child-cargo.
Convenience
The Lincoln MKT's fuel tank will need to be replenished more often than the unit in the A6.
Comfort
Taller drivers will considerably enjoy the extra head room in the Lincoln's front cabin compared to the Audi A6.
The ampler interior dimensions of the Lincoln MKT make it considerably more spacious for your passengers than the Audi A6.
Dimensions
The Lincoln's tank is approximately the same size as the Audi A6's, though the A6's is slightly larger.
The Audi A6 and the Lincoln MKT compete for the same parking spaces.
Handling
With their comparable turning circles, the Audi A6 and the Lincoln definitely handle roughly the same into and out of tight spots.
Drivetrain
The Lincoln MKT's engine is significantly larger than the Audi A6's. Remember that bigger engines may use more gas than smaller ones.
Torque equals pickup, and the Audi A6 will have picked up and gone by the time the Lincoln finally gets moving.
Warranty
The MKT and the Audi A6 have the same basic warranty.