2019 Infiniti QX30 vs. 2019 Lexus NX Series

Detailed Review, Specifications & Comparison

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Safety

Both the QX30 and the NX Series have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear 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 and around view monitors.

Warranty

The QX30 comes with a full 4-year/60,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The NX Series’ 4-year/50,000-mile basic warranty expires 10,000 miles sooner.

The QX30’s corrosion warranty is 1 year longer than the NX Series’ (7 vs. 6 years).

Engine

The QX30’s 2.0 turbo 4 cyl. produces 14 more horsepower (208 vs. 194) and 59 lbs.-ft. more torque (258 vs. 199) than the NX 300h’s standard 2.5 DOHC 4 cyl. hybrid.

As tested in Motor Trend the Infiniti QX30 is faster than the Lexus NX Series:

 

QX30

NX 300h

NX 300

Zero to 60 MPH

6.3 sec

8.3 sec

7 sec

Quarter Mile

14.9 sec

16.3 sec

15.3 sec

Speed in 1/4 Mile

93.7 MPH

84.5 MPH

90.7 MPH

Fuel Economy and Range

On the EPA test cycle the QX30 gets better fuel mileage than the NX Series:

 

 

 

MPG

QX30

 

FWD

2.0 turbo 4 cyl.

24 city/33 hwy

 

AWD

2.0 turbo 4 cyl.

21 city/30 hwy

NX Series

 

FWD

2.0 turbo 4 cyl.

22 city/28 hwy

 

AWD

2.0 turbo 4 cyl.

22 city/28 hwy

 

 

F Sport 2.0 turbo 4 cyl.

22 city/27 hwy

Transmission

A seven-speed automatic (SMG) is standard on the Infiniti QX30, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the NX Series.

The QX30 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 NX Series doesn’t offer an SMG or a conventional manual transmission.

Brakes and Stopping

The QX30 stops much shorter than the NX Series:

 

QX30

NX Series

 

70 to 0 MPH

163 feet

183 feet

Car and Driver

60 to 0 MPH

106 feet

127 feet

Motor Trend

Tires and Wheels

For better traction, the QX30 has larger tires than the NX Series (235/50R18 vs. 225/65R17).

The QX30’s standard tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the NX Series’ standard 65 series tires. The QX30’s optional tires have a lower 45 series profile than the NX Series F Sport’s 55 series tires.

For better ride, handling and brake cooling the QX30 has standard 18-inch wheels. Smaller 17-inch wheels are standard on the NX Series. The QX30’s optional 19-inch wheels are larger than the 18-inch wheels optional on the NX Series.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the QX30 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The NX Series doesn’t offer run-flat tires.

Suspension and Handling

For a smoother ride and more stable handling, the QX30’s wheelbase is 1.6 inches longer than on the NX Series (106.3 inches vs. 104.7 inches).

The QX30 Essential AWD handles at .83 G’s, while the NX 300 F Sport AWD pulls only .76 G’s of cornering force in a Car and Driver skidpad test.

The QX30 Sport executes Motor Trend’s “Figure Eight” maneuver 1.7 seconds quicker than the NX 300h AWD (26.1 seconds @ .71 average G’s vs. 27.8 seconds @ .63 average G’s).

For better maneuverability, the QX30 AWD’s turning circle is .8 feet tighter than the NX Series’ (36.6 feet vs. 37.4 feet). The QX30’s turning circle is 2.5 feet tighter than the NX Series AWD’s (37.3 feet vs. 39.8 feet).

For greater off-road capability the QX30 has a 1.3 inches greater minimum ground clearance than the NX 300h (8 vs. 6.7 inches), allowing the QX30 to travel over rougher terrain without being stopped or damaged. The QX30’s minimum ground clearance is 1.1 inches higher than on the NX 300 (8 vs. 6.9 inches).

Chassis

The Infiniti QX30 may be more efficient, handle and accelerate better because it weighs about 650 to 700 pounds less than the Lexus NX Series.

The QX30 is 8.5 inches shorter than the NX Series, making the QX30 easier to handle, maneuver and park in tight spaces.

Passenger Space

The QX30 has 17.2 cubic feet more passenger volume than the NX Series (88.8 vs. 71.6).

The front step up height for the QX30 is 1.7 inches lower than the NX Series (16.4” vs. 18.1”). The QX30’s rear step up height is .8 inches lower than the NX Series’ (17.2” vs. 18”).

Cargo Capacity

The QX30 has a much larger cargo volume than the NX Series with its rear seat up (19.2 vs. 17.7 cubic feet).

A low lift-over cargo hatch design makes loading and unloading the QX30 easier. The QX30’s cargo hatch lift-over height is 28.1 inches, while the NX Series’ liftover is 31.2 inches.

Servicing Ease

The QX30 has a maintenance free battery for long life without checking the battery’s water level. The NX Series doesn’t have a maintenance free battery, so the water level in the battery’s cells must be checked often to prevent damage.

J.D. Power and Associates surveys of service recipients show that Infiniti service is better than Lexus. J.D. Power ranks Infiniti first in service department satisfaction. With a 5% lower rating, Lexus is ranked third.

Ergonomics

Unlike the driver-only memory system optional at extra cost in the NX Series, the QX30 Luxe/Sport/Essential has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

Heated windshield washer nozzles are standard on the QX30 Sport/Essential to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The NX Series doesn’t offer heated windshield washer nozzles.

The QX30 (except Pure/Luxe)’s optional Intelligent Park Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The NX Series doesn’t offer an automated parking system.

Economic Advantages

The QX30 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the QX30 will retain 53.6% to 54.72% of its original price after five years, while the NX Series only retains 52.34% to 52.9%.

According to The Car Book by Jack Gillis, the QX30 is less expensive to operate than the NX Series because it costs $711 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the QX30 than the NX Series, including $139 less for a muffler, $134 less for a starter, $204 less for fuel injection, $31 less for a fuel pump and $506 less for a timing belt/chain.

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

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