2020 Acura TLX vs. 2019 Infiniti Q50

Detailed Review, Specifications & Comparison

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Safety

Both the TLX and the Q50 have standard driver and passenger frontal airbags, front side-impact 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 blind spot warning systems, around view monitors and rear cross-path warning.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Acura TLX is safer than the Infiniti Q50:

TLX

Q50

OVERALL STARS

5 Stars

4 Stars

Driver

STARS

5 Stars

4 Stars

Passenger

STARS

5 Stars

3 Stars

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 TLX is safer than the Infiniti Q50:

TLX

Q50

Front Seat

STARS

5 Stars

5 Stars

Chest Movement

.8 inches

.9 inches

Abdominal Force

179 G’s

262 G’s

Hip Force

276 lbs.

320 lbs.

Into Pole

STARS

5 Stars

5 Stars

Max Damage Depth

14 inches

19 inches

Spine Acceleration

36 G’s

36 G’s

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

Warranty

There are over 27 percent more Acura dealers than there are Infiniti dealers, which makes it easier should you ever need service under the TLX’s warranty.

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 TLX’s reliability 17 points higher than the Q50.

Fuel Economy and Range

An engine control system that can shut down half of the engine’s cylinders helps improve the TLX V6’s fuel efficiency. The Q50 doesn’t offer a system that can shut down part of the engine.

To lower fuel costs and make buying fuel easier, the Acura TLX uses regular unleaded gasoline (premium recommended for maximum performance). The Q50 requires premium, which can cost 20 to 55 cents more per gallon.

The TLX 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 Q50 doesn’t offer a cap-less fueling system.

Transmission

A nine-speed automatic is standard on the Acura TLX V6, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the Q50.

The TLX offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The Q50 doesn’t offer an SMG or a conventional manual transmission.

Tires and Wheels

The TLX 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 Q50 doesn’t offer vehicle monitored tire inflation.

Suspension and Handling

For better handling and stability, the track (width between the wheels) on the TLX is 2.3 inches wider in the front and 1.6 inches wider in the rear than the average track on the Q50.

Chassis

The TLX uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The Q50 doesn’t offer active noise cancellation.

Passenger Space

The TLX has 2.1 inches more front hip room, .8 inches more front shoulder room and 2.4 inches more rear hip room than the Q50.

Cargo Capacity

The TLX has a much larger trunk than the Q50 (14.3 vs. 13.2 cubic feet).

The TLX’s standard rear seats fold to accommodate long and bulky cargo. The Q50 Pure doesn’t offer folding rear seats.

Servicing Ease

The TLX has a maintenance free battery for long life without checking the battery’s water level. The Q50 doesn’t have a maintenance free battery, so the water level in the battery’s cells must be checked often to prevent damage.

Ergonomics

The TLX’s standard easy entry system glides the driver’s seat back, making it easier for the driver to get in and out. An easy entry system costs extra on the Q50, and is not available on all models.

The TLX has standard heated front seats. Heated front seats cost extra on the Q50, and aren’t available on the Q50 2.0t. The TLX Advance also has standard heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the Q50.

Standard air-conditioned seats in the TLX Advance/V6 A-Spec 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.

Economic Advantages

Insurance will cost less for the TLX owner. The Complete Car Cost Guide estimates that insurance for the TLX will cost $1005 to $9900 less than the Q50 over a five-year period.

According to The Car Book by Jack Gillis, the TLX is less expensive to operate than the Q50 because typical repairs cost much less on the TLX than the Q50, including $16 less for front brake pads, $6 less for a fuel pump, $212 less for front struts and $331 less for a timing belt/chain.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Acura TLX will be $4522 to $15178 less than for the Infiniti Q50.

Recommendations

The Car Book by Jack Gillis recommends the Acura TLX, based on economy, maintenance, safety and complaint levels. The Infiniti Q50 isn't recommended.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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