The rear seatbelts optional on the Fusion inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The A4 doesn’t offer inflatable seatbelts.
The Fusion (except S)’s optional driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The A4 doesn’t offer a driver alert monitor.
Both the Fusion and the A4 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, front-wheel drive, height-adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems, front and rear parking sensors and rear cross-path warning.
Ford’s powertrain warranty covers the Fusion 1 year and 10,000 miles longer than Audi covers the A4. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the A4 ends after only 4 years or 50,000 miles.
There are almost 15 times as many Ford dealers as there are Audi dealers, which makes it much easier should you ever need service under the Fusion’s warranty.
To reliably start during all conditions and help handle large electrical loads, the Fusion has a standard 500-amp battery. The A4’s 420-amp battery isn’t as powerful.
J.D. Power and Associates’ 2016 Initial Quality Study of new car owners surveyed provide the statistics that show that Ford vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Ford 11th in initial quality, above the industry average. With 8 more problems per 100 vehicles, Audi is ranked 14th, below the industry average.
The Fusion Sport’s standard 2.7 turbo V6 produces 73 more horsepower (325 vs. 252) and 77 lbs.-ft. more torque (350 vs. 273) than the A4’s 2.0 turbo 4 cyl.
To lower fuel costs and make buying fuel easier, the Ford Fusion uses regular unleaded gasoline (premium recommended with the 2.0 turbo 4 cyl. engine for maximum performance). The A4 requires premium, which can cost 20 to 55 cents more per gallon.
The Fusion FWD’s standard fuel tank has 1.2 gallons more fuel capacity than the A4 (16.5 vs. 15.3 gallons), for longer range between fill-ups. The Fusion AWD’s standard fuel tank has 2.7 gallons more fuel capacity than the A4 (18 vs. 15.3 gallons).
The Fusion has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The A4 doesn’t offer a cap-less fueling system.
The Fusion’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The A4 doesn’t offer drift compensation steering.
For a smoother ride and more stable handling, the Fusion’s wheelbase is 1.2 inches longer than on the A4 (112.2 inches vs. 111 inches).
For better handling and stability, the track (width between the wheels) on the Fusion is .8 inches wider in the front and 1.2 inches wider in the rear than on the A4.
For better maneuverability, the Fusion’s turning circle is .6 feet tighter than the A4’s (37.5 feet vs. 38.1 feet).
The front grille of the Fusion uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The A4 doesn’t offer active grille shutters.
The Fusion Platinum uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The A4 doesn’t offer active noise cancellation.
Because it has more passenger and cargo room, the Fusion is rated a Mid-size car by the EPA, while the A4 is rated a Compact.
The Fusion has 10.8 cubic feet more passenger volume than the A4 (102.8 vs. 92).
The Fusion has .3 inches more front headroom, 3 inches more front legroom, 1.9 inches more front shoulder room, .4 inches more rear headroom, 2.6 inches more rear legroom and 2.4 inches more rear shoulder room than the A4.
The Fusion has a much larger trunk than the A4 (16 vs. 13 cubic feet).
The Fusion offers a remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The A4 doesn’t offer a remote starting system.
The Fusion (except S)’s optional easy entry system raises the steering wheel and glides the driver’s seat back when the door is unlocked or the ignition is switched off, making it easier for the driver to get in and out. The A4 doesn’t offer an easy entry system.
If the windows are left down on the Fusion the driver can raise them all using the keyless remote; on a hot day the driver can lower the windows. The driver of the A4 can’t use the remote to operate the windows.
In case you lock your keys in your vehicle, or don’t have them with you, you can let yourself in using the Fusion SE/Titanium/Sport/Platinum’s exterior keypad. The A4 doesn’t offer an exterior keypad entry system.
The Fusion (except S) offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The A4 doesn’t offer a house-current electrical outlet.
The Fusion (except S)’s optional Active Park Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The A4 doesn’t offer an automated parking system.
According to The Car Book by Jack Gillis, the Fusion is less expensive to operate than the A4 because it costs $288 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the Fusion than the A4, including $587 less for a water pump, $239 less for an alternator, $68 less for front brake pads, $592 less for a starter, $384 less for fuel injection, $399 less for a fuel pump and $587 less for front struts.
Consumer Reports® recommends the Ford Fusion, based on reliability, safety and performance.
The Fusion Hybrid was chosen as one of Car and Driver’s “Top Ten” in 2010. The A4 has never been a Car and Driver “Top Ten” pick.
Motor Trend selected the Fusion as their 2010 Car of the Year. The A4 has never been chosen.
The Fusion Hybrid was chosen as one of Automobile Magazine’s “All Stars” in 2010. The A4 has never been an “All Star.”
A group of representative automotive journalists from North America selected the Fusion Hybrid as the 2010 North American Car of the Year. The A4 has never been chosen.
The Ford Fusion outsold the Audi A4/S4 by almost nine to one during the 2016 model year.