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The Q3’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The QX30 doesn’t offer pre-crash pretensioners.
Both the Q3 and QX30 have child safety locks to prevent children from opening the rear doors. The Q3 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 QX30’s 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 Q3 has standard Secondary Collision Brake Assist, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The QX30 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 Q3. But it costs extra on the QX30.
To help make backing safer, the Q3’s optional cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The QX30 doesn’t offer a cross-path warning system.
Both the Q3 and the QX30 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee 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, rearview cameras, available lane departure warning systems, blind spot warning systems and around view monitors.
The Audi Q3 weighs 430 to 620 pounds more than the Infiniti QX30. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
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 front crash prevention system, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the Q3 its highest rating: “Top Pick Plus” for 2019, a rating granted to only 55 vehicles tested by the IIHS. The QX30 has not been tested, yet.
The Q3’s corrosion warranty is 5 years longer than the QX30’s (12 vs. 7 years).
There are over 42 percent more Audi dealers than there are Infiniti dealers, which makes it easier should you ever need service under the Q3’s warranty.
The Audi Q3’s engine uses a cast iron block for durability, while the QX30’s engine uses an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.
To reliably power the ignition and other systems and to recharge the battery, the Q3 has a standard 140-amp alternator. The QX30’s 110-amp alternator isn’t as powerful.
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 Q3’s reliability 20 points higher than the QX30.
J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than Infiniti vehicles. J.D. Power ranks Audi 8th in reliability, above the industry average. With 4 more problems per 100 vehicles, Infiniti is ranked 11th.
The Q3’s 2.0 turbo 4 cyl. produces 20 more horsepower (228 vs. 208) than the QX30’s 2.0 turbo 4 cyl.
To lower fuel costs and make buying fuel easier, the Audi Q3 uses regular unleaded gasoline. The QX30 requires premium, which can cost 20 to 55 cents more per gallon.
The Q3 has 2.7 gallons more fuel capacity than the QX30 FWD’s standard fuel tank (15.9 vs. 13.2 gallons), for longer range between fill-ups. The Q3 has 1.1 gallons more fuel capacity than the QX30 AWD’s standard fuel tank (15.9 vs. 14.8 gallons).
In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Audi Q3 higher (7 out of 10) than the Infiniti QX30 (3). This means the Q3 produces up to 24.5 pounds less smog-producing pollutants than the QX30 every 15,000 miles.
An eight-speed automatic is standard on the Audi Q3, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the QX30.
For better stopping power the Q3’s brake rotors are larger than those on the QX30:
The Q3’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the QX30 are solid, not vented.
The Q3 stops shorter than the QX30:
70 to 0 MPH
Car and Driver
For better traction, the Q3’s optional tires are larger than the largest tires available on the QX30 (255/40R20 vs. 235/50R18).
The Q3’s optional tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the QX30’s optional 45 series tires.
For better ride, handling and brake cooling the Q3 offers optional 20-inch wheels. The QX30’s largest wheels are only 19-inches.
The Q3 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 QX30; 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.
The Q3 Prestige handles at .91 G’s, while the QX30 Essential AWD pulls only .83 G’s of cornering force in a Car and Driver skidpad test.
The Q3 has 1.2 inches more front headroom, 1.9 inches more front shoulder room, .1 inches more rear headroom, 2.6 inches more rear legroom and 2 inches more rear shoulder room than the QX30.
For enhanced passenger comfort on long trips the Q3’s rear seats recline. The QX30’s rear seats don’t recline.
The Q3 has a much larger cargo volume with its rear seat up than the QX30 with its rear seat up (23.7 vs. 19.2 cubic feet). The Q3 has a much larger cargo volume with its rear seat folded than the QX30 with its rear seat folded (48 vs. 34 cubic feet).
To make loading and unloading groceries and cargo easier, especially for short adults, the Q3 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 QX30 doesn’t offer a power liftgate.
The Q3 has a 1500 lbs. towing capacity. The QX30 has no towing capacity.
The Q3 uses gas struts to support the hood for easier service access. The QX30 uses a prop rod to support its heavy hood. It takes two hands to open the hood and set the prop rod, the prop rod gets in the way during maintenance and service, and the prop rod could be knocked out, causing the heavy hood to fall on the person maintaining or servicing the car.
The power windows standard on both the Q3 and the QX30 have locks to prevent small children from operating them. When the lock on the Q3 is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The QX30 prevents the driver from operating the other windows just as it does the other passengers.
The Q3’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The QX30’s rear power window switches have to be held the entire time to open or close them fully.
The Q3’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The QX30’s standard manually variable intermittent wipers have to be constantly adjusted.
To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Q3 has standard extendable sun visors. The QX30 doesn’t offer extendable visors.
To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Audi Q3 Premium Plus/Prestige has a standard wireless phone charging system (Qi) in the center console. The QX30 doesn’t offer wireless personal charging.
Consumer Reports® recommends the Audi Q3, based on reliability, safety and performance.
The Audi Q3 outsold the Infiniti QX30 by 85% during the 2019 model year.
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