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For enhanced safety, the front shoulder belts of the Cadillac XT4 are height-adjustable, and the rear seat shoulder belts have child comfort guides to move the belt to properly fit children. A better fit can prevent injuries and the increased comfort also encourages children to buckle up. The Infiniti QX30 has only front 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 XT4 are reminded to check the back seat if they opened the rear door before starting out. The QX30 doesn’t offer a back seat reminder.
Over 200 people are killed each year when backed over by motor vehicles. The XT4 Premium/Sport offers optional Reverse Automatic Braking that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The QX30 doesn’t offer backup collision prevention brakes.
To help make backing safer, the XT4 Premium Luxury/Sport’s 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 XT4 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, front-wheel drive, 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 all-wheel drive, lane departure warning systems, blind spot warning systems and around view monitors.
There are over 4 times as many Cadillac dealers as there are Infiniti dealers, which makes it much easier should you ever need service under the XT4’s warranty.
J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Cadillac vehicles are better in initial quality than Infiniti vehicles. J.D. Power ranks Cadillac 17th in initial quality. With 1 more problems per 100 vehicles, Infiniti is ranked 19th.
The XT4’s 2.0 turbo 4 cyl. produces 29 more horsepower (237 vs. 208) than the QX30’s 2.0 turbo 4 cyl.
An engine control system that can shut down half of the engine’s cylinders helps improve the XT4’s fuel efficiency. The QX30 doesn’t offer a system that can shut down part of the engine.
To lower fuel costs and make buying fuel easier, the Cadillac XT4 uses regular unleaded gasoline (premium recommended for maximum performance). The QX30 requires premium, which can cost 20 to 55 cents more per gallon.
The XT4 FWD’s standard fuel tank 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 XT4 AWD’s standard fuel tank has 1.5 gallons more fuel capacity than the QX30 AWD’s standard fuel tank (16.3 vs. 14.8 gallons).
The XT4 has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The QX30 doesn’t offer a cap-less fueling system.
In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Cadillac XT4 higher (6 out of 10) than the Infiniti QX30 (3). This means the XT4 produces up to 23.4 pounds less smog-producing pollutants than the QX30 every 15,000 miles.
A nine-speed automatic is standard on the Cadillac XT4, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the QX30.
The XT4’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.
For better traction, the XT4 Premium Luxury/Sport’s optional tires are larger than the largest tires available on the QX30 (245/45R20 vs. 235/50R18).
For better ride, handling and brake cooling the XT4 Premium Luxury/Sport offers optional 20-inch wheels. The QX30’s largest wheels are only 19-inches.
The XT4 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 QX30 doesn’t offer vehicle monitored tire inflation.
The XT4 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 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 XT4 offers an available driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads or off-road. The QX30’s suspension doesn’t offer adjustable shock absorbers.
For a smoother ride and more stable handling, the XT4’s wheelbase is 3.1 inches longer than on the QX30 (109.4 inches vs. 106.3 inches).
For better handling and stability, the track (width between the wheels) on the XT4 is 1.4 inches wider in the front and 1.2 inches wider in the rear than the average track on the QX30.
The XT4’s front to rear weight distribution is more even (58.4% to 41.6%) than the QX30’s (59.7% to 40.3%). This gives the XT4 more stable handling and braking.
The XT4 Sport AWD handles at .89 G’s, while the QX30 Essential AWD pulls only .83 G’s of cornering force in a Car and Driver skidpad test.
The front grille of the XT4 Premium Luxury/Sport uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The QX30 doesn’t offer active grille shutters.
The XT4 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The QX30 doesn’t offer active noise cancellation.
As tested by Car and Driver, the interior of the XT4 Sport AWD is quieter than the QX30 Essential AWD:
70 MPH Cruising
The XT4 has 12.5 cubic feet more passenger volume than the QX30 (101.3 vs. 88.8).
The XT4 has 1 inch more front headroom, 2.8 inches more front legroom, 2.4 inches more front hip room, 2.2 inches more front shoulder room, .8 inches more rear headroom, 6 inches more rear legroom, .8 inches more rear hip room and 2 inches more rear shoulder room than the QX30.
The XT4 has a much larger cargo volume with its rear seat up than the QX30 with its rear seat up (22.5 vs. 19.2 cubic feet). The XT4 has a much larger cargo volume with its rear seat folded than the QX30 with its rear seat folded (48.9 vs. 34 cubic feet).
To make loading and unloading groceries and cargo easier when your hands are full, the XT4 Premium Luxury/Sport’s power liftgate can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The QX30 doesn’t offer a power or hands-free opening liftgate.
The XT4 has a 2500 lbs. towing capacity. The QX30 has no towing capacity.
The XT4 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.
J.D. Power and Associates surveys of service recipients show that Cadillac service is better than Infiniti. J.D. Power ranks Cadillac third in service department satisfaction. With a 2% lower rating, Infiniti is ranked fourth.
The XT4 has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The QX30 doesn’t offer a remote starting system.
The XT4 Premium Luxury/Sport offers an optional heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The QX30 doesn’t offer a heads-up display.
The power windows standard on both the XT4 and the QX30 have locks to prevent small children from operating them. When the lock on the XT4 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 XT4’s front and rear power windows all lower with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The QX30’s rear power window switches have to be held the entire time to open them fully.
The XT4 Luxury’s standard speed-sensitive wipers speed up when the vehicle does, so that the driver doesn’t have to continually adjust the speed of the wipers. The QX30’s standard manually variable intermittent wipers have to be constantly adjusted.
To improve rear visibility by keeping the rear window clear, the XT4 has a standard rear fixed intermittent wiper with a full on position. The rear wiper standard on the QX30 only has an intermittent setting, so in a hard rain visibility isn’t as good.
To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the XT4 has standard extendable sun visors. The QX30 doesn’t offer extendable visors.
Both the XT4 and the QX30 offer available heated front seats. The XT4 also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the QX30.
Optional air-conditioned seats in the XT4 Premium Luxury/Sport keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The QX30 doesn’t offer air-conditioned seats.
On extremely cold winter days, the XT4’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the vehicle heater warms up. The QX30 doesn’t offer a heated steering wheel.
To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Cadillac XT4 offers an optional wireless phone charging system (Qi) in the center console. The QX30 doesn’t offer wireless personal charging.
Insurance will cost less for the XT4 owner. The Complete Car Cost Guide estimates that insurance for the XT4 will cost $90 to $3090 less than the QX30 over a five-year period.
The XT4 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the XT4 will retain 40.82% to 41.58% of its original price after five years, while the QX30 only retains 36.01% to 36.87%.
The Cadillac XT4 outsold the Infiniti QX30 by almost seven to one during the 2019 model year.
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