Compare the2022 Acura RDXVS 2022 Cadillac XT4

Safety
Reliability
Engine
Fuel Economy and Range
Transmission
Brakes and Stopping
Tires and Wheels
Suspension and Handling
Passenger Space
Cargo Capacity
Ergonomics
Economic Advantages
Recommendations

Safety

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The RDX’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 XT4.

To help make backing out of a parking space safer, the RDX has a standard rear cross-path warning system, which uses sensors in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. Only the XT4 Premium Luxury/Sport has a rear cross-path warning system.

Both the RDX and the XT4 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, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available all wheel drive and around view monitors.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Acura RDX is safer than the Cadillac XT4:

	RDX	XT4
	Passenger
STARS	4 Stars	4 Stars
Chest Compression	.6 inches	.7 inches
Neck Injury Risk	30%	34%
Neck Stress	99 lbs.	131 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Acura RDX is safer than the Cadillac XT4:

	RDX	XT4
	Front Seat
STARS	5 Stars	5 Stars
HIC	63	114
Chest Movement	.6 inches	.8 inches
Abdominal Force	130 lbs.	185 lbs.
Hip Force	217 lbs.	328 lbs.
	Rear Seat
STARS	5 Stars	5 Stars
HIC	124	169
Hip Force	462 lbs.	598 lbs.
	Into Pole
STARS	5 Stars	5 Stars
Max Damage Depth	11 inches	13 inches

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

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 vehicle-to-vehicle front crash prevention system, its standard vehicle-to-pedestrian front crash prevention system, and its standard headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the RDX its highest rating: “Top Pick Plus” for 2021, a rating granted to only 76 vehicles tested by the IIHS. The XT4 has not been fully tested, yet.

Reliability

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 RDX’s reliability 17 points higher than the XT4.

Engine

The RDX’s 2.0 turbo 4-cylinder produces 37 more horsepower (272 vs. 235) and 22 lbs.-ft. more torque (280 vs. 258) than the XT4’s 2.0 turbo 4-cylinder.

As tested in Car and Driver the Acura RDX is faster than the Cadillac XT4:

	RDX	XT4
Zero to 60 MPH	6.6 sec	7.8 sec
Zero to 100 MPH	18.1 sec	23 sec
5 to 60 MPH Rolling Start	7 sec	8.2 sec
Quarter Mile	15.2 sec	16.1 sec
Speed in 1/4 Mile	93 MPH	87 MPH

Fuel Economy and Range

Both the RDX and the XT4 have a standard automatic start/stop engine feature to stop unnecessary fuel waste and pollution at stop lights and heavy traffic. All RDXs have a standard disable switch for the system, so a driver can keep the engine from shutting off when the vehicle stops temporarily.

The RDX has 1.2 gallons more fuel capacity than the XT4 FWD’s standard fuel tank (17.1 vs. 15.9 gallons), for longer range between fill-ups.

Transmission

A 10-speed automatic is standard on the Acura RDX, for better acceleration and lower engine speed on the highway. Only a nine-speed automatic is available for the XT4.

Brakes and Stopping

The RDX stops much shorter than the XT4:

	RDX	XT4
60 to 0 MPH	116 feet	126 feet	Motor Trend
60 to 0 MPH (Wet)	129 feet	141 feet	Consumer Reports

Tires and Wheels

For better traction, the RDX A-Spec’s tires are larger than the largest tires available on the XT4 (255/40R20 vs. 245/45R20).

The RDX’s standard tires provide better handling because they have a lower 55 series profile (height to width ratio) that provides a stiffer sidewall than the XT4’s standard 60 series tires. The RDX A-Spec’s tires have a lower 40 series profile than the XT4 Premium Luxury/Sport’s optional 45 series tires.

For better ride, handling and brake cooling the RDX has standard 19-inch wheels. Smaller 18-inch wheels are standard on the XT4.

Suspension and Handling

For better handling and stability, the track (width between the wheels) on the RDX is 1 inch wider in the front and 1.6 inches wider in the rear than on the XT4.

The RDX AWD executes Motor Trend’s “Figure Eight” maneuver quicker than the XT4 Sport AWD (27.2 seconds @ .64 average G’s vs. 27.6 seconds @ .61 average G’s).

For greater off-road capability the RDX has a 1.5 inches greater minimum ground clearance than the XT4 (8.2 vs. 6.7 inches), allowing the RDX to travel over rougher terrain without being stopped or damaged.

Passenger Space

The RDX has 2.7 cubic feet more passenger volume than the XT4 (104 vs. 101.3).

The RDX has .2 inches more front headroom, .5 inches more front hip room, 2.7 inches more front shoulder room, .1 inches more rear hip room and 1.5 inches more rear shoulder room than the XT4.

Cargo Capacity

The RDX has a much larger cargo volume with its rear seat up than the XT4 with its rear seat up (31.1 vs. 22.5 cubic feet). The RDX has a much larger cargo volume with its rear seat folded than the XT4 with its rear seat folded (79.8 vs. 48.9 cubic feet).

Pulling a handle automatically lowers the RDX’s rear seats, to make changing between passengers and cargo easier. The XT4 doesn’t offer automatic folding seats.

Ergonomics

The RDX’s front and rear power windows all open or close 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 XT4’s rear power window switches have to be held the entire time to close them fully.

If the windows are left open on the RDX the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the XT4 can only close the windows from inside the vehicle, with the ignition on.

The RDX has a standard locking fuel door with a remote release located convenient to the driver. A locking fuel door helps prevent fuel theft and vandalism, such as sugar in the tank. The XT4 doesn’t offer a locking fuel door.

Economic Advantages

Insurance will cost less for the RDX owner. The Complete Car Cost Guide estimates that insurance for the RDX will cost $450 to $1460 less than the XT4 over a five-year period.

The RDX will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the RDX will retain 49.86% to 51.01% of its original price after five years, while the XT4 only retains 45.25% to 45.56%.

According to The Car Book by Jack Gillis, the RDX is less expensive to operate than the XT4 because it costs $346 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the RDX than the XT4, including $106 less for a water pump, $438 less for a muffler, $171 less for fuel injection and $732 less for a timing belt/chain.

Recommendations

The Acura RDX has won recognition from these important consumer publications:

	RDX	XT4
Consumer Reports® Recommends	TRUE	FALSE
Car Book “Best Bet”	TRUE	FALSE

Motor Trend performed a comparison test in its February 2019 issue and the Acura RDX AWD won out over the Cadillac XT4 Sport AWD.

The Acura RDX outsold the Cadillac XT4 by almost four to one during the 2021 model year.