Compare the2025 BMW 5 SeriesVS 2024 Infiniti Q50

Safety
Warranty
Reliability
Engine
Fuel Economy and Range
Environmental Friendliness
Transmission
Brakes and Stopping
Tires and Wheels
Suspension and Handling
Chassis
Passenger Space
Cargo Capacity
Ergonomics
Recommendations

Safety

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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 5 Series are reminded to check the back seat if they opened the rear door before starting out. The Q50 doesn’t offer a back seat reminder.

The BMW 5 Series has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Q50 doesn’t offer knee airbags.

With its standard Active Driving Assistant, the BMW 5 Series is better at preventing collisions with pedestrians than the Infiniti Q50, according to the Insurance Institute for Highway Safety:

	5 Series	Q50
Overall Evaluation	GOOD	POOR
	Crossing Child - DAY
12 MPH	AVOIDED	No Slowing
25 MPH	AVOIDED	No Slowing
	Crossing Adult - NIGHT
12 MPH Brights	AVOIDED	No Slowing
12 MPH Low beams	AVOIDED	No Slowing
25 MPH Brights	AVOIDED	No Slowing
25 MPH Low beams	AVOIDED	No Slowing
	Parallel Adult - NIGHT
25 MPH Brights	AVOIDED	No Slowing
25 MPH Low beams	AVOIDED	No Slowing
37 MPH Brights	AVOIDED	No Slowing
Warning Issued-Brights	1.9 sec	No Warning
37 MPH Low beams	AVOIDED	No Slowing
Warning Issued-Low beams	1.6 sec	No Warning

The 5 Series has a standard PostCrash iBrake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Q50 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.

The 5 Series’ 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 Q50 doesn’t offer a driver alert monitor.

Both the 5 Series and the Q50 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, available all wheel drive and around view monitors.

The BMW 5 Series achieved a “Top Safety Pick” rating from the Insurance Institute for Highway Safety (IIHS) for the 2024 model year. This recognition was based on its impressive performance in the small overlap frontal crash test, updated side impact crash test, headlight evaluations, and pedestrian crash prevention testing. The Q50 is not a “Top Safety Pick” for 2024.

Warranty

The 5 Series’ corrosion warranty is 5 years longer than the Q50’s (12 vs. 7 years).

There are over 73 percent more BMW dealers than there are Infiniti dealers, which makes it much easier should you ever need service under the 5 Series’ warranty.

Reliability

J.D. Power and Associates rated the 5 Series second among upper midsize premium cars in their 2024 Initial Quality Study. The Q50 isn’t in the top three in its category.

J.D. Power and Associates’ 2024 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Infiniti With 29 fewer problems per 100 vehicles in the first three years of ownership, J.D. Power ranks BMW higher than Infiniti.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that BMW vehicles are more reliable than Infiniti vehicles. Consumer Reports ranks BMW 4 places higher in reliability than Infiniti.

Engine

The 5 Series has more powerful engines than the Q50:

	Horsepower	Torque
540i xDrive 3.0 turbo 6-cylinder hybrid	375 HP	398 lbs.-ft.
550e xDrive 3.0 turbo 6-cylinder hybrid	483 HP	516 lbs.-ft.
Q50 3.0 turbo V6	300 HP	295 lbs.-ft.
Q50 Red Sport 400 3.0 turbo V6	400 HP	350 lbs.-ft.

Fuel Economy and Range

On the EPA test cycle the 5 Series running its gasoline engine gets better mileage than the Q50:

			MPG
5 Series
	RWD	2.0 turbo 4-cyl. Hybrid	28 city/35 hwy
	AWD	2.0 turbo 4-cyl. Hybrid	27 city/35 hwy
		3.0 turbo 6-cyl. Hybrid	26 city/33 hwy
Q50
	RWD	3.0 turbo V6	20 city/29 hwy
		Red Sport 400 3.0 turbo V6	20 city/26 hwy
	AWD	3.0 turbo V6	19 city/27 hwy
		Red Sport 400 3.0 turbo V6	19 city/26 hwy

Regenerative brakes improve the 5 Series’ fuel efficiency by converting inertia back into energy instead of wasting it. The Q50 doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the 5 Series’ engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. If the conditions warrant or the driver wishes, the system can be manually disabled at any time for the duration of a trip. The Q50 doesn’t offer an automatic engine start/stop system.

To lower fuel costs and make buying fuel easier, the BMW 5 Series uses regular unleaded gasoline (premium recommended for maximum performance). The Q50 requires premium, which can cost on average about 84.9 cents more per gallon.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the BMW 5 Series higher (7 out of 10) than the Infiniti Q50 (3). This means the 5 Series produces up to 24.5 pounds less smog-producing pollutants than the Q50 every 15,000 miles.

Transmission

An eight-speed automatic is standard on the BMW 5 Series, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the Q50.

The 5 Series’ 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 Q50 doesn’t offer launch control.

Brakes and Stopping

For better stopping power the 5 Series’ standard brake rotors are larger than those on the Q50:

	5 Series	Q50
Front Rotors	13.4 inches	12.6 inches
Rear Rotors	13 inches	12.1 inches

The 5 Series stops much shorter than the Q50:

	5 Series	Q50
70 to 0 MPH	156 feet	165 feet	Car and Driver
60 to 0 MPH	100 feet	123 feet	Motor Trend

Tires and Wheels

For better traction, the 5 Series has larger standard tires than the Q50 (245/45R19 vs. 225/50R18). The 5 Series’ optional tires are larger than the largest tires available on the Q50 (F:255/35R21 & R:285/30R21 vs. F:245/40R19 & R:265/35R19).

The 5 Series’ standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the Q50 Luxe’s standard 50 series tires. The 5 Series’ optional 255/35R21 front and 285/30R21 rear tires have a lower 35 series front and 30 series rear profile than the Q50 Red Sport 400’s 40 series front and 35 series rear tires.

For better ride, handling and brake cooling the 5 Series has standard 19-inch wheels. Smaller 18-inch wheels are standard on the Q50 Luxe. The 5 Series’ optional 21-inch wheels are larger than the 19-inch wheels on the Q50 Sensory/Red Sport 400 AWD.

The 5 Series offers an optional 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 Q50; 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.

Suspension and Handling

The 5 Series has standard front and rear gas-charged shocks for better control over choppy roads. The Q50’s suspension doesn’t offer gas-charged shocks.

For a smoother ride and more stable handling, the 5 Series’ wheelbase is 5.7 inches longer than on the Q50 (117.9 inches vs. 112.2 inches).

For better handling and stability, the track (width between the wheels) on the 5 Series is 3.4 inches wider in the front and 3.7 inches wider in the rear than the average track on the Q50.

The 5 Series’ front to rear weight distribution is more even (52.5% to 47.5%) than the Q50’s (55.9% to 44.1%). This gives the 5 Series more stable handling and braking.

The 530i xDrive handles at .95 G’s, while the Q50 Red Sport 400 AWD pulls only .86 G’s of cornering force in a Motor Trend skidpad test.

Chassis

The front grille of the 5 Series uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The Q50 doesn’t offer active grille shutters.

Passenger Space

The 5 Series has 2.5 inches more front shoulder room, .9 inches more rear headroom, 1.9 inches more rear legroom and .8 inches more rear shoulder room than the Q50.

Cargo Capacity

The 5 Series has a much larger trunk than the Q50 (18.4 vs. 13.5 cubic feet).

To make loading and unloading groceries and cargo easier when your hands are full, the 5 Series’ power trunk can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The Q50 doesn’t offer a power or hands-free opening trunk.

Ergonomics

Unlike the driver-only memory system in the Q50, the 5 Series has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.

The 5 Series offers an optional heads-up display that projects speed, warning, navigation instruction and driver assistance information readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Q50 doesn’t offer a heads-up display.

The 5 Series’ power parking brake sets with one touch and releases with one touch or automatically. The Q50’s parking brake has to be released manually.

The power windows standard on both the 5 Series and the Q50 have locks to prevent small children from operating them. When the lock on the 5 Series is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Q50 prevents the driver from operating the other windows just as it does the other passengers.

The 5 Series’ standard Comfort Access allow you to unlock the doors from any outside door handle, open the trunk, and start the car, all without removing the key from the pocket or purse. Infiniti Intelligent Key standard on the Q50 doesn’t offer a sensor on the rear doors, so you’ll have to reach a front handle to unlock the rear door.

The Insurance Institute for Highway Safety (IIHS) conducts detailed tests on headlights for their range both straight ahead and in curves and to be certain they don’t exceed acceptable amounts of glare to oncoming drivers. The 5 Series’ headlights were rated “Good” by the IIHS, while the Q50’s headlights are rated “Marginal.”

A power rear sunshade and manual rear side window sunshades are optional in the 5 Series to help block heat and glare for the rear passengers. The Q50 doesn’t offer a rear or rear side window sunshades.

Both the 5 Series and the Q50 have standard heated front seats. The 5 Series also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the Q50.

Optional air-conditioned seats in the 5 Series keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The Q50 doesn’t offer air-conditioned seats.

The 5 Series offers optional massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the Q50.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the BMW 5 Series has a standard wireless phone charging system (Qi) in the front center console. The Q50 doesn’t offer wireless personal charging.

The 5 Series’ Parking Assistant Plus can parallel park by itself, starting, stopping and changing direction automatically. Optional Remote Control Parking will park and retrieve your car remotely: press a button and watch it park itself. This is ideal for tight locations. The Q50 doesn’t offer an automated parking system.

Recommendations

The BMW 5 Series outsold the Infiniti Q50 by almost four to one during 2023.