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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 Lexus UX Series 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 UX Series doesn’t offer a back seat reminder.
The XT4 Premium/Sport offers an optional Surround Vision to allow the driver to see objects all around the vehicle on a screen. The UX Series only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
Both the XT4 and the UX Series 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, daytime running lights, rearview cameras, available all wheel drive, crash mitigating brakes, lane departure warning systems, blind spot warning systems and rear cross-path warning.
There are almost 4 times as many Cadillac dealers as there are Lexus dealers, which makes it much easier should you ever need service under the XT4’s warranty.
The XT4’s 2.0 turbo 4 cyl. produces 68 more horsepower (237 vs. 169) and 107 lbs.-ft. more torque (258 vs. 151) than the UX 200’s standard 2.0 DOHC 4 cyl. The XT4’s 2.0 turbo 4 cyl. produces 56 more horsepower (237 vs. 181) than the UX 250h’s standard 2.0 DOHC 4 cyl. hybrid.
An engine control system that can shut down half of the engine’s cylinders helps improve the XT4’s fuel efficiency. The UX Series doesn’t offer a system that can shut down part of the engine.
The XT4 FWD’s standard fuel tank has 5.3 gallons more fuel capacity than the UX Series Hybrid’s standard fuel tank (15.9 vs. 10.6 gallons), for longer range between fill-ups. The XT4 AWD’s standard fuel tank has 3.9 gallons more fuel capacity than the UX Series’ standard fuel tank (16.3 vs. 12.4 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 UX Series doesn’t offer a cap-less fueling system.
For better stopping power the XT4’s brake rotors are larger than those on the UX Series:
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 UX Series are solid, not vented.
For better traction, the XT4 has larger standard tires than the UX Series (235/60R18 vs. 225/50R18). The XT4 Premium/Sport’s optional tires are larger than the largest tires available on the UX Series (245/45R20 vs. 225/50R18).
The XT4 Premium/Sport’s optional tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the UX Series’ 50 series tires.
For better ride, handling and brake cooling the XT4 Premium/Sport offers optional 20-inch wheels. The UX Series’ largest wheels are only 18-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 UX Series doesn’t offer vehicle monitored tire inflation.
The XT4 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 UX Series; 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 UX Series’ suspension doesn’t offer adjustable shock absorbers.
For a smoother ride and more stable handling, the XT4’s wheelbase is 5.5 inches longer than on the UX Series (109.4 inches vs. 103.9 inches).
For better handling and stability, the track (width between the wheels) on the XT4 is 2.2 inches wider in the front and 2.1 inches wider in the rear than on the UX Series.
The XT4 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The UX Series doesn’t offer active noise cancellation.
The XT4 has 10.6 cubic feet more passenger volume than the UX Series (101 vs. 90.4).
The XT4 has 2.2 inches more front headroom, .7 inches more front hip room, 1.9 inches more front shoulder room, 2 inches more rear headroom, 6.4 inches more rear legroom and 2.2 inches more rear shoulder room than the UX Series.
The XT4 has a larger cargo volume with its rear seat up than the UX Series (22.5 vs. 21.7 cubic feet).
The XT4 has a 2500 lbs. towing capacity. The UX Series has no towing capacity.
The XT4 uses gas struts to support the hood for easier service access. The UX Series 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 XT4 and the UX Series 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 UX Series prevents the driver from operating the other windows just as it does the other passengers.
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 UX Series’ standard manually variable intermittent wipers have to be constantly adjusted.
Both the XT4 and the UX Series offer optional 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 UX Series.
The XT4 Premium/Sport’s optional Automatic Park Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The UX Series doesn’t offer an automated parking system.
The Cadillac XT4 outsold the Lexus UX Series by over 17 to one during 2018.
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