Certified Benz & Beemer Compares 2019 Infiniti Q50 VS 2019 Acura TLX Near Scottsdale, AZ

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2019 Infiniti Q50

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VS

2019 Acura TLX

Safety Comparison

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Over 200 people are killed each year when backed over by motor vehicles. The Q50 (except 2.0t) offers optional Back-up Collision Intervention which use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The TLX doesn’t offer backup collision prevention brakes.

Both the Q50 and the TLX 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 all wheel drive, lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

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 Infiniti Q50 is safer than the Acura TLX:

 

Q50

TLX

 

Front Seat

STARS

5 Stars

5 Stars

HIC

79

187

 

Rear Seat

STARS

5 Stars

5 Stars

HIC

196

229

Spine Acceleration

46 G’s

57 G’s

Hip Force

415 lbs.

483 lbs.

 

Into Pole

STARS

5 Stars

5 Stars

HIC

190

249

Hip Force

634 lbs.

678 lbs.

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

Warranty Comparison

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The Q50 comes with a full 4-year/60,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The TLX’s 4-year/50,000-mile basic warranty expires 10,000 miles sooner.

The Q50’s corrosion warranty is 2 years longer than the TLX’s (7 vs. 5 years).

Reliability Comparison

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J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Infiniti vehicles are better in initial quality than Acura vehicles. J.D. Power ranks Infiniti 14th in initial quality, above the industry average. With 7 more problems per 100 vehicles, Acura is ranked 20th, below the industry average.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Infiniti vehicles are more reliable than Acura vehicles. J.D. Power ranks Infiniti fourth in reliability, above the industry average. With 39 more problems per 100 vehicles, Acura is ranked 20th.

From surveys of all its subscribers, Consumer Reports’ April 2018 Auto Issue reports that Infiniti vehicles are more reliable than Acura vehicles. Consumer Reports ranks Infiniti 12 places higher in reliability than Acura.

Engine Comparison

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The Q50 has more powerful engines than the TLX:

 

Horsepower

Torque

Q50 2.0t turbo 4 cyl.

208 HP

258 lbs.-ft.

Q50 3.0t turbo V6

300 HP

295 lbs.-ft.

Q50 Red Sport 400 3.0 turbo V6

400 HP

350 lbs.-ft.

TLX 2.4 DOC 4 cyl.

206 HP

182 lbs.-ft.

TLX 3.5 SOHC V6

290 HP

267 lbs.-ft.

As tested in Car and Driver the Q50 Red Sport 400 is faster than the Acura TLX V6:

 

Q50

TLX

Zero to 60 MPH

4.5 sec

5.8 sec

Zero to 100 MPH

10.5 sec

14.1 sec

5 to 60 MPH Rolling Start

5 sec

6.2 sec

Quarter Mile

13 sec

14.2 sec

Speed in 1/4 Mile

112 MPH

100 MPH

Top Speed

153 MPH

129 MPH

Fuel Economy and Range Comparison

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On the EPA test cycle the Q50 gets better fuel mileage than the TLX:

 

 

Q50

TLX

 

2WD

2.0t/Auto

23 city/30 hwy

20 city/31 hwy

V6/Auto

 

 

n/a

20 city/30 hwy

V6/Auto A-Spec

AWD

2.0t/Auto

22 city/28 hwy

20 city/29 hwy

V6/Auto

The Q50 has 2.8 gallons more fuel capacity than the TLX (20 vs. 17.2 gallons), for longer range between fill-ups.

Brakes and Stopping Comparison

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For better stopping power the Q50 Sport’s front brake rotors are larger than those on the TLX:

 

Q50 Sport

TLX

Front Rotors

14 inches

12.6 inches

Rear Rotors

13.8 inches

12.2 inches

The Q50’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the TLX are solid, not vented.

The Q50 stops much shorter than the TLX:

 

Q50

TLX

 

70 to 0 MPH

165 feet

179 feet

Car and Driver

Tires and Wheels Comparison

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The Q50 Red Sport 400’s 265/35R19 rear tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the TLX A-Spec’s 40 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the Q50 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The TLX doesn’t offer run-flat tires.

Suspension and Handling Comparison

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The Q50 offers an optional 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. The TLX’s suspension doesn’t offer adjustable shock absorbers.

The Q50 Sport’s optional drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The TLX doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the Q50’s wheelbase is 2.9 inches longer than on the TLX (112.2 inches vs. 109.3 inches).

The Q50’s front to rear weight distribution is more even (53.8% to 46.2%) than the TLX’s (59.7% to 40.3%). This gives the Q50 more stable handling and braking.

The Q50 Red Sport 400 handles at .88 G’s, while the TLX V6 SH-AWD pulls only .82 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the Q50’s turning circle is 2.1 feet tighter than the TLX V6’s (36.7 feet vs. 38.8 feet). The Q50 AWD’s turning circle is 2.1 feet tighter than the TLX SH-AWD’s (37.4 feet vs. 39.5 feet).

Passenger Space Comparison

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Because it has more passenger and cargo room, the EPA rates the Q50 a Mid-size car, while the TLX is rated a Compact.

The Q50 has 8.2 cubic feet more passenger volume than the TLX (101.5 vs. 93.3).

The Q50 has 3 inches more front headroom, 1.9 inches more front legroom, .8 inches more rear headroom, .6 inches more rear legroom and .7 inches more rear shoulder room than the TLX.

Ergonomics Comparison

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The Q50’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 TLX’s standard intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

To help drivers see further while navigating curves, the Q50 Sport offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The TLX doesn’t offer cornering lights.

Economic Advantages Comparison

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Insurance will cost less for the Q50 owner. The Car Book by Jack Gillis rates the Q50 with a number “1” insurance rate while the TLX is rated higher at a number “10” rate.

According to The Car Book by Jack Gillis, the Q50 is less expensive to operate than the TLX because it costs $54 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the Q50 than the TLX, including $49 less for a water pump, $96 less for a muffler, $313 less for a starter, $232 less for fuel injection and $15 less for a power steering pump.

Recommendations Comparison

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The Infiniti Q50 outsold the Acura TLX by 17% during 2017.

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