Utility
Drivers with frequent child-duty might favor the Dodge Challenger over the Audi A5.
Performance
Regarding horsepower, the Challenger packs quite a punch and will knock the Audi A5 down a few rungs. On the flip side, note that high horsepower engines often command higher insurance premiums.
Dimensions
The Audi A5's tank is about the same size as the Dodge's, though the Dodge's is a little larger.
The Audi A5 and the Dodge compete for the same parking spaces.
The Dodge Challenger's longer wheelbase will result in a smoother, more stable ride; however, the Audi A5 may give a more agile feel in daily traffic.
Convenience
You'll most definitely take the Audi A5 for a fill-up almost as often as the Dodge Challenger.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. The Dodge Challenger is considerably cheaper to get to the dealership than the A5.
The Dodge Challenger won't tax your gas budget substantially more than the Audi A5 will.
The Audi A5 won't save you much money at the pump compared to the Dodge Challenger.
In terms of MSRP, the Audi A5 costs significantly more than the Dodge Challenger.
Handling
With its tighter turning radius, the Dodge Challenger is most certainly more agile than the Audi, something to consider if you do a lot of city driving; on the other hand, note that a vehicle with a tight turning circle may feel a bit twitchy on the highway.
Drivetrain
The Dodge Challenger's engine is tremendously more sizeable than the Audi's. Note that more sizeable engines may use more gas than smaller ones.
Torque is the force that lets you accelerate quickly, and in this respect, the Audi isn't much more powerful than the Dodge Challenger.
Comfort
While the front cabin in the Dodge Challenger offers a bit more head room than the A5, there honestly isn't much of a difference.
The Dodge offers more head- and leg-room to your passengers than the A5 does.
Warranty
The basic after-sale protection that comes with the Dodge Challenger isn't quite as generous as the Audi A5's.