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 Toyota to the dealership as the Acura TSX.
The Acura TSX doesn't pale in comparison to the Toyota Avalon with respect to gas mileage.
With respect to gas mileage, the Toyota Avalon is a little better than the Acura TSX, but not by much.
The Avalon isn't much less costly than the Acura when it comes to MSRP.
Utility
The Toyota Avalon and the Acura TSX can accommodate the same number of passengers.
Convenience
You most certainly won't have to visit your friendly gas station more often with the Acura TSX than with the Toyota, as both offer comparable ranges.
Comfort
Taller drivers will substantially enjoy the extra head room in the Toyota's front cabin compared to the Acura TSX.
The ampler interior dimensions of the Avalon make it more spacious for your passengers than the Acura TSX.
Dimensions
The Acura and the Toyota Avalon compete for the same parking spaces.
Handling
With their comparable turning radii, the TSX and the Toyota Avalon most definitely handle approximately the same into and out of tight spots.
Drivetrain
The Toyota Avalon's engine is significantly more massive than the Acura TSX's. Note that more massive engines may use more gas than smaller ones.
The Toyota Avalon packs quite a wallop compared to the Acura TSX in terms of torque, which is roughly equivalent to acceleration.
Torque is the force that lets you accelerate quickly, and in this respect, the Toyota is considerably more powerful than the Acura TSX.
Warranty
The basic warranty that comes with the Toyota Avalon isn't quite as generous as the Acura TSX's.