Compare the2024 Infiniti Q50VS 2024 Mercedes E-Class Sedan

The Q50’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 E-Class Sedan.

Both the Q50 and the E-Class Sedan have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, around view monitors, rear cross-path warning and available all wheel drive.

The Q50 comes with a full 4-year/60,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The E-Class Sedan’s 4-year/50,000-mile basic warranty expires 10,000 miles sooner.

Infiniti’s powertrain warranty covers the Q50 2 years and 20,000 miles longer than Mercedes covers the E-Class Sedan. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the E-Class Sedan ends after only 4 years or 50,000 miles.

The Q50’s corrosion warranty is 2 years longer than the E-Class Sedan’s (7 vs. 5 years).

Infiniti pays for scheduled maintenance on the Q50 for 3 years and 36,000 miles. Infiniti will pay for oil changes, tire rotations, air filter replacements, cabin filter replacement, brake fluid replacement, inspections, and any other required maintenance. Mercedes doesn’t pay scheduled maintenance for the E-Class Sedan.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that Infiniti vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Infiniti 16 places higher in reliability than Mercedes.

The Q50’s standard 3.0 turbo V6 produces 45 more horsepower (300 vs. 255) than the E 350 Sedan’s standard 2.0 turbo 4-cylinder hybrid. The Q50 Red Sport 400’s standard 3.0 turbo V6 produces 25 more horsepower (400 vs. 375) than the E 450 Sedan’s standard 3.0 turbo 6-cylinder hybrid.

As tested in Car and Driver the Q50 Red Sport 400 is faster than the E 350 Sedan 2.0 turbo 4-cylinder hybrid:

The Q50 has 2.6 gallons more fuel capacity than the E-Class Sedan (20 vs. 17.4 gallons), for longer range between fill-ups.

The Q50 Luxe’s standard tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the E-Class Sedan’s standard 55 series tires.

The Q50 has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The E-Class Sedan doesn’t offer vehicle monitored tire inflation.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the Q50 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. Run-flat tires aren’t available on some tire packages on the E-Class Sedan.

For better maneuverability, the Q50’s turning circle is 1.4 feet tighter than the E 350 Sedan’s (36.7 feet vs. 38.1 feet). The Q50 AWD’s turning circle is 2 feet tighter than the E 450 Sedan’s (37.4 feet vs. 39.4 feet).

The Infiniti Q50 may be more efficient, handle and accelerate better because it weighs about 350 to 400 pounds less than the Mercedes E-Class Sedan.

The Q50 is 5.3 inches shorter than the E-Class Sedan, making the Q50 easier to handle, maneuver and park in tight spaces.

J.D. Power and Associates surveys of service recipients show that Infiniti service is better than Mercedes. J.D. Power ranks Infiniti 9th in service department satisfaction (above the industry average). With a 13% lower rating, Mercedes is ranked 18th.

The Q50 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 E-Class Sedan.

The Q50 is available in both rear-wheel drive and all-wheel drive configurations. The E-Class Sedan doesn’t offer a two-wheel drive configuration.

Consumer Reports® recommends the Infiniti Q50, based on reliability, safety and performance.