2020 Mercedes GLC Coupe vs. 2020 Lexus RX Series

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/11/20

The GLC Coupe’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The RX Series doesn’t offer pre-crash pretensioners.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the GLC Coupe. But it costs extra on the RX Series.

Both the GLC Coupe and the RX Series have standard driver and passenger frontal airbags, front side-impact airbags, driver 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, driver alert monitors, available lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

Warranty

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/11/20

There are over 59 percent more Mercedes dealers than there are Lexus dealers, which makes it much easier should you ever need service under the GLC Coupe’s warranty.

Engine

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The GLC Coupe’s 2.0 turbo 4 cyl. produces 5 lbs.-ft. more torque (273 vs. 268) than the RX 350’s standard 3.5 DOHC V6.

As tested in Motor Trend the Mercedes GLC Coupe is faster than the Lexus RX Series:

GLC Coupe

RX 350

RX 450h

Zero to 60 MPH

6.7 sec

6.8 sec

7 sec

Fuel Economy and Range

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/11/20

On the EPA test cycle the GLC 300 Coupe gets better fuel mileage than the RX 350 AWD (21 city/28 hwy vs. 19 city/26 hwy).

Transmission

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A nine-speed automatic is standard on the Mercedes GLC Coupe, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the RX Series.

Brakes and Stopping

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For better stopping power the GLC Coupe’s front brake rotors are larger than those on the RX Series:

GLC Coupe

RX Series

Front Rotors

13.5 inches

12.9 inches

Tires and Wheels

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/11/20

For better traction, the GLC Coupe’s optional tires are larger than the largest tires available on the RX Series (F:255/45R20 & R:285/40R20 vs. 235/65R18).

The GLC Coupe’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 RX Series’ standard 65 series tires. The GLC Coupe’s optional 255/45R20 front and 285/40R20 rear tires have a lower 45 series front and 40 series rear profile than the RX Series’ optional 55 series tires.

For better ride, handling and brake cooling the GLC Coupe has standard 19-inch wheels. Smaller 18-inch wheels are standard on the RX Series.

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

Suspension and Handling

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The GLC Coupe’s 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 RX Series doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the GLC Coupe’s wheelbase is 3.3 inches longer than on the RX Series (113.1 inches vs. 109.8 inches).

The GLC 300 Coupe handles at .79 G’s, while the RX 450h pulls only .78 G’s of cornering force in a Motor Trend skidpad test.

Chassis

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The GLC Coupe is 5.8 inches shorter than the RX Series, making the GLC Coupe easier to handle, maneuver and park in tight spaces.

Towing

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The GLC Coupe’s standard towing capacity is much higher than the RX Series’ (3500 vs. 0 pounds).

Servicing Ease

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The engine in the GLC Coupe is mounted longitudinally (North-South), instead of sideways, as in the RX Series. This makes it easier to service and maintain, because there are no rear spark plugs and the accessory belts are in front.

Ergonomics

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Unlike the driver-only memory system optional at extra cost in the RX Series, the GLC Coupe offers an optional passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position 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 GLC Coupe to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The RX Series doesn’t offer heated windshield washer nozzles.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes GLC offers an optional wireless phone charging system (Qi) in the center console. The RX Series doesn’t offer wireless personal charging.

The GLC Coupe’s optional Active Parking Assist can parallel park or back into a parking spot by itself, starting and stopping automatically, with the driver only responsible for switching from reverse to drive. The RX Series doesn’t offer an automated parking system.

Economic Advantages

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/11/20

According to The Car Book by Jack Gillis, the GLC Coupe is less expensive to operate than the RX Series because typical repairs cost much less on the GLC Coupe than the RX Series, including $292 less for a water pump, $55 less for a starter, $1636 less for a timing belt/chain and $905 less for a power steering pump.

Recommendations

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/11/20

Motor Trend selected the GLC Coupe as their 2017 Sport Utility of the Year. The RX Series has never been chosen.

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