Compare the2024 Audi A5 SportbackVS 2022 Mercedes A-Class

For enhanced safety, the front seat shoulder belts of the Audi A5 Sportback are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Mercedes A-Class doesn’t offer height-adjustable seat belts.

Both the A5 Sportback and A-Class have child safety locks to prevent children from opening the rear doors. The A5 Sportback has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The A-Class’ child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.

The A5 Sportback has a standard Audi Backguard System, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Audi Backguard System moves the headrests forward to prevent neck and spine injuries. The A-Class doesn’t offer a whiplash protection system.

The A5 Sportback has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The A-Class doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the A5 Sportback. But it costs extra on the A-Class.

When descending a steep, off-road slope, the A5 Sportback’s standard Hill Descent Control allows you to creep down safely. The A-Class doesn’t offer Hill Descent Control.

The A5 Sportback’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. A lane departure warning system costs extra on the A-Class.

To help make backing out of a parking space safer, the A5 Sportback’s optional Rear Cross-Traffic Assist uses sensors in the rear to alert the driver to vehicles approaching from the side and Automatic Brake Activation automatically engages the brakes to help avoid a collision. The A-Class doesn’t offer a rear cross-path warning system.

Both the A5 Sportback and the A-Class have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available blind spot warning systems and around view monitors.

For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard vehicle-to-vehicle front crash prevention system, its standard vehicle-to-pedestrian front crash prevention system, and its available headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the A5 Sportback the rating of “Top Safety Pick” for 2022, a rating granted to only 174 vehicles tested by the IIHS. The A-Class has not been tested, yet.

The A5 Sportback’s corrosion warranty is 7 years longer than the A-Class’ (12 vs. 5 years).

The Audi A5 Sportback’s engines use a cast iron block for durability, while the A-Class’ engine uses an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.

The battery on the A5 Sportback is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the A5 Sportback’s battery 20 to 30 degrees cooler, its life is increased by years. The A-Class’ battery is in the hot engine compartment.

From surveys of all its subscribers, Consumer Reports’ January 2023 Auto Issue reports that Audi vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Audi 18 places higher in reliability than Mercedes.

The A5 Sportback 40 TFSI’s standard 2.0 turbo 4-cylinder hybrid produces 13 more horsepower (201 vs. 188) and 15 lbs.-ft. more torque (236 vs. 221) than the A-Class’ 2.0 turbo 4-cylinder. The A5 Sportback 45 TFSI’s standard 2.0 turbo 4-cylinder hybrid produces 73 more horsepower (261 vs. 188) and 52 lbs.-ft. more torque (273 vs. 221) than the A-Class’ 2.0 turbo 4-cylinder.

On the EPA test cycle the A5 Sportback gets better mileage than the A-Class:

Regenerative brakes improve the A5 Sportback’s fuel efficiency by converting inertia back into energy instead of wasting it. The A-Class doesn’t offer a regenerative braking system.

To lower fuel costs and make buying fuel easier, the Audi A5 Sportback uses regular unleaded gasoline (premium recommended for maximum performance). The A-Class requires premium, which can cost on average about 82.8 cents more per gallon.

The A5 Sportback has 1.8 gallons more fuel capacity than the A-Class (15.3 vs. 13.5 gallons), for longer range between fill-ups.

The A5 Sportback’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The A-Class doesn’t offer launch control.

For better stopping power the A5 Sportback 45 TFSI’s brake rotors are larger than those on the A-Class:

The A5 Sportback’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the A-Class are solid, not vented.

For better traction, the A5 Sportback has larger standard tires than the A-Class (245/40R18 vs. 205/55R17). The A5 Sportback’s optional tires are larger than the largest tires available on the A-Class (255/35R19 vs. 225/40R19).

The A5 Sportback’s standard tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the A-Class’ standard 55 series tires. The A5 Sportback’s optional tires have a lower 35 series profile than the A-Class’ optional 40 series tires.

For better ride, handling and brake cooling the A5 Sportback has standard 18-inch wheels. Smaller 17-inch wheels are standard on the A-Class.

The A5 Sportback has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the A-Class; it requires you to depend on its run-flat tires, which limits mileage and speed before they are repaired. If a run-flat is damaged beyond repair by a road hazard your vehicle will have to be towed. Some tire options on the A-Class don’t have a run-flat feature, either.

For a smoother ride and more stable handling, the A5 Sportback’s wheelbase is 3.8 inches longer than on the A-Class (111.2 inches vs. 107.4 inches).

Because it has more passenger and cargo room, the EPA rates the A5 Sportback a Mid-size car, while the A-Class is rated a Compact.

The A5 Sportback has .6 inches more front shoulder room, 1.2 inches more rear legroom and .5 inches more rear shoulder room than the A-Class.

To make loading and unloading groceries and cargo easier, especially for short adults, the A5 Sportback has a standard power liftgate, which opens and closes automatically by pressing a button, or optionally by just kicking your foot under the back bumper, completely leaving your hands free. The A-Class doesn’t offer a power trunk, so its trunk has to be closed manually.

The engine in the A5 Sportback is mounted longitudinally (North-South), instead of sideways, as in the A-Class. This makes it easier to service and maintain, because the accessory belts are in front.

J.D. Power and Associates surveys of service recipients show that Audi service is better than Mercedes. J.D. Power ranks Audi 8th in service department satisfaction (above the industry average). With a 16% lower rating, Mercedes is ranked 18th.

Heated windshield washer nozzles are standard on the A5 Sportback to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The A-Class doesn’t offer heated windshield washer nozzles.

Laser headlights, standard on the A5 Sportback Prestige, produce their light by firing blue lasers through phosphorus, a process that uses one-half the power of the A-Class’ LED headlights. Laser headlights can have double the range of LEDs with a much smaller surface area.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The A5 Sportback has standard headlight washers to keep headlight output high. The A-Class doesn’t offer headlight washers.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the A5 Sportback has standard extendable sun visors. The A-Class doesn’t offer extendable visors.

The A5 Sportback has standard heated front seats. Heated front seats cost extra on the A-Class. The A5 Sportback Prestige also has standard heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the A-Class.

The A5 Sportback has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the car heater warms up. A heated steering wheel costs extra on the A-Class.

The Audi A5 comes in coupe, convertible and four door hatchback bodystyles; the Mercedes A-Class isn’t available as a coupe or convertible.

The Audi A5/S5 outsold the Mercedes A-Class by over three to one during 2022.