Compare the2025 Mercedes GLBVS 2024 Lexus RX

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

To help make backing out of a parking space safer, the GLB has standard Rear Cross-Traffic Alert with Active Brake Assist, systems which detect vehicles approaching from the sides and can automatically apply the brakes to prevent a collision. Parking Support Brake costs extra on the RX.

Both the GLB and the RX 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, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors, available all wheel drive, lane departure warning systems and around view monitors.

There are over 57 percent more Mercedes dealers than there are Lexus dealers, which makes it much easier should you ever need service under the GLB’s warranty.

To reliably start during all conditions and help handle large electrical loads, the GLB has a standard 800-amp battery. The RX’s 603-amp battery isn’t as powerful.

The GLB’s 2.0 turbo 4-cylinder hybrid produces 25 lbs.-ft. more torque (258 vs. 233) than the RX 350h’s standard 2.5 DOHC 4-cylinder hybrid.

As tested in Motor Trend the Mercedes GLB is faster than the Lexus RX:

On the EPA test cycle the GLB gets better mileage than the RX running its gasoline engine:

Both the GLB and the RX have a standard automatic start/stop engine feature to stop unnecessary fuel waste and pollution at stoplights and heavy traffic. All GLBs have a standard disable switch for the system, so a driver can keep the engine from shutting off when the vehicle stops temporarily. The RX 350h/500h doesn’t offer a way to disable start/stop.

The GLB has 1.4 gallons more fuel capacity than the RX 450+’s standard fuel tank (15.9 vs. 14.5 gallons), for longer range between fill-ups.

The GLB 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 RX doesn’t offer an SMG or a conventional manual transmission.

The GLB stops shorter than the RX:

The GLB’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’s standard 60 series tires. The GLB’s optional tires have a lower 45 series profile than the RX’s optional 50 series tires.

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

The GLB has standard front and rear gas-charged shocks for better control over choppy roads. The RX base model’s suspension doesn’t offer gas-charged shocks.

The GLB’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 doesn’t offer drift compensation steering.

The GLB 250 4MATIC handles at .83 G’s, while the RX 350 AWD pulls only .75 G’s of cornering force in a Motor Trend skidpad test.

The GLB 250 4MATIC executes Motor Trend’s “Figure Eight” maneuver 1.2 seconds quicker than the RX 350h (27.4 seconds @ .62 average G’s vs. 28.6 seconds @ .57 average G’s).

The Mercedes GLB may be more efficient, handle and accelerate better because it weighs about 500 to 900 pounds less than the Lexus RX.

The GLB is 10.1 inches shorter than the RX, making the GLB easier to handle, maneuver and park in tight spaces.

The design of the Mercedes GLB amounts to more than styling. The GLB has an aerodynamic coefficient of drag of .32 Cd. That is lower than the RX (.35) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the GLB get better fuel mileage.

The GLB offers optional seating for 7 passengers; the RX can only carry 5.

The GLB has 1.2 inches more front headroom, .7 inches more rear headroom and .7 inches more rear legroom than the RX.

The GLB’s cargo area provides more volume than the RX.

A low lift-over cargo hatch design makes loading and unloading the GLB easier. The GLB’s cargo hatch lift-over height is 28.5 inches, while the RX’s liftover is 31 inches.

Unlike the driver-only memory system in the RX Premium/Luxury/500h F Sport, the GLB has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, suspension setting, power steering assist, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.

Heated windshield washer nozzles are optional on the GLB to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The RX doesn’t offer heated windshield washer nozzles.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes GLB has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the RX.

Insurance will cost less for the GLB owner. The Complete Car Cost Guide estimates that insurance for the GLB will cost $65 to $2875 less than the RX over a five-year period.

The GLB will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the GLB will retain 61.32% of its original price after five years, while the RX only retains 58.33% to 60.37%.