Compare the2024 Subaru LegacyVS 2022 Mercedes A-Class

For enhanced safety, the front seat shoulder belts of the Subaru Legacy 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.

In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Legacy are reminded to check the back seat if they opened the rear door before starting out. The A-Class doesn’t offer a back seat reminder.

The Legacy has standard Whiplash-Reducing Front Seats, which use a specially designed seat to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash-Reducing Front Seats system allows the backrest to travel backwards to cushion the occupants and the headrests move forward to prevent neck and spine injuries. The A-Class doesn’t offer a whiplash protection system.

Over 200 people are killed each year when backed over by motor vehicles. The Legacy Sport/Limited/Touring has standard Reverse Automatic Braking that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The A-Class doesn’t offer backup collision prevention brakes.

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

The Legacy’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 Legacy (except Base)’s optional Rear Cross Traffic Alert uses sensors in the rear to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The A-Class doesn’t offer a rear cross-path warning system.

Both the Legacy and the A-Class have standard driver and passenger frontal airbags, front side-impact airbags, driver 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, rear parking sensors and driver alert monitors.

For its performance in IIHS driver-side and passenger-side small overlap frontal, moderate overlap frontal, updated side impact, headlight, and daytime pedestrian crash prevention testing, the Insurance Institute for Highway Safety grants the Legacy the rating of “Top Safety Pick” for 2023, a rating granted to only 55 vehicles tested by the IIHS. The A-Class has not been tested, yet.

Subaru’s powertrain warranty covers the Legacy 1 year and 10,000 miles longer than Mercedes covers the A-Class. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the A-Class ends after only 4 years or 50,000 miles.

There are over 65 percent more Subaru dealers than there are Mercedes dealers, which makes it much easier should you ever need service under the Legacy’s warranty.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the Legacy’s reliability 16 points higher than the A-Class.

J.D. Power and Associates’ 2023 Initial Quality Study of new car owners surveyed provide the statistics that show that Subaru vehicles are better in initial quality than Mercedes vehicles. J.D. Power ranks Subaru above average in initial quality. With 16 more problems per 100 vehicles, Mercedes is rated below average.

From surveys of all its subscribers, Consumer Reports’ January 2023 Auto Issue reports that Subaru vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Subaru 17 places higher in reliability than Mercedes.

The Legacy Sport/XT’s standard 2.4 turbo 4-cylinder produces 72 more horsepower (260 vs. 188) and 56 lbs.-ft. more torque (277 vs. 221) than the A-Class’ 2.0 turbo 4-cylinder.

As tested in Motor Trend the Legacy Sport/XT 2.4 turbo 4-cylinder is faster than the Mercedes A-Class:

The flat cylinder configuration of the boxer engine in the Legacy lowers its center of gravity, enhancing handling stability (That’s why Porsche uses boxer engines.). The A-Class doesn’t offer a boxer engine configuration.

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

To lower fuel costs and make buying fuel easier, the Subaru Legacy uses regular unleaded gasoline. The A-Class requires premium, which can cost on average about 82.8 cents more per gallon.

The Legacy has 5 gallons more fuel capacity than the A-Class (18.5 vs. 13.5 gallons), for longer range between fill-ups.

The U.S. Environmental Protection Agency (EPA) certifies the Subaru Legacy as a “Super Ultra Low Emissions Vehicle” (SULEV). The Mercedes A-Class is only certified to “Ultra Low Emissions Vehicle” (ULEV) standards.

The Legacy has a standard continuously variable transmission (CVT). With no “steps” between gears, it can keep the engine at the most efficient speed for fuel economy, or keep it at its peak horsepower indefinitely for maximum acceleration. The A-Class doesn’t offer a CVT.

The Legacy’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 Legacy has larger tires than the A-Class (225/55R17 vs. 205/55R17).

The Legacy 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 better handling and stability, the track (width between the wheels) on the Legacy is .5 inches wider in the front and 2.5 inches wider in the rear than on the A-Class.

The front grille of the Legacy 2.5i uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The A-Class doesn’t offer active grille shutters.

Because it has more passenger and cargo room, the EPA rates the Legacy a Large car, while the A-Class is rated a Compact.

The Legacy has 12.5 cubic feet more passenger volume than the A-Class (105.5 vs. 93).

The Legacy has 1 inch more front legroom, 3 inches more front shoulder room, 5.6 inches more rear legroom and 3.4 inches more rear shoulder room than the A-Class.

The front step up height for the Legacy is 1.5 inches lower than the A-Class (13.5” vs. 15”). The Legacy’s rear step up height is 1 inches lower than the A-Class’ (14” vs. 15”).

The Legacy has a much larger trunk than the A-Class (15.1 vs. 8.6 cubic feet).

The engine in the Legacy 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.

In case you lock your keys in your vehicle, or don’t have them with you, you can let yourself in using the Legacy’s available exterior PIN entry system (not available on Legacy Base). The A-Class doesn’t offer an exterior PIN entry system, and its Mercedes-Benz Emergency Call can’t unlock the doors if the vehicle doesn’t have cell phone reception or the driver can’t contact the service.

Consumer Reports rated the Legacy’s headlight performance “Fair,” a higher rating than the A-Class’ headlights, which were rated “Poor.”

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

Both the Legacy and the A-Class offer available heated front seats. The Legacy Limited/Touring 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.

Consumer Reports® recommends the Subaru Legacy, based on reliability, safety and performance. The Mercedes A-Class isn't recommended.

The Subaru Legacy outsold the Mercedes A-Class by almost four to one during 2022.