2021 Mercedes-Benz GLB vs GLC

2021 Mercedes-Benz GLB vs. 2021 Mercedes-Benz GLC

2021 Mercedes-Benz GLB


2021 Mercedes-Benz GLC
221-hp, 2.0L inline-4 turbo


255-hp, 2.0L inline-4 turbo
8G-DCT 8-speed dual-clutch automatic


9G-TRONIC® 9-speed automatic
6.9 seconds

Acceleration (0 to 60 MPH)

6.1 seconds
23 city/31 highway mpg*

Fuel Economy

22 city/29 highway mpg*
5 (7 Optional)

Passenger Capacity

22.0 to 62.0 cubic feet

Cargo Capacity

19.4 to 56.5 cubic feet

The Mercedes-Benz SUV lineup has something to offer every driver in San Antonio. When you’re ready to make the upgrade, you may struggle to decide between models like the 2021 Mercedes-Benz GLB vs. GLC. As always, Mercedes-Benz of San Antonio is here to help! We want to make sure you choose the right SUV for your lifestyle and driving needs, so we’ve compared the GLB vs. GLC in detail, below.

GLB vs. GLC: Performance Details

What is your top priority as you search for your next luxury SUV? If your daily commute to Alamo Heights has you most concerned about fuel economy, it’s good to know that the Mercedes-Benz GLB earns an EPA-estimated 23 mpg city/31 mpg highway.* Those who value engine speed and power above all else will note that the Mercedes-Benz GLC has a 0 to 60 time of just 6.1 seconds. Compare the Mercedes-Benz GLB vs. GLC powertrains and performance specs in detail to learn more:

Mercedes-Benz GLB 250 Specs

  • Engine: 2.0L inline-4 turbo
  • Transmission: 8G-DCT 8-speed dual-clutch automatic
  • Fuel Economy: 23 city/31 highway mpg*
  • Acceleration: 0 to 60 mph in 6.9 second
  • Horsepower: 221 hp
  • Torque: 258 lb-ft

Mercedes-Benz GLC 300 Specs

  • Engine: 2.0L inline-4 turbo
  • Transmission: 9G-TRONIC® 9-speed automatic
  • Fuel Economy: 22 city/29 highway mpg*
  • Acceleration: 0 to 60 mph in 6.1 second
  • Horsepower: 255 hp
  • Torque: 273 lb-ft

GLB vs. GLC: Passenger & Cargo Space

How much seating space do you require in an SUV? An important difference to note between the GLB vs. GLC is that the GLC, while larger overall, caps off its seating capacity at 5 passengers. The GLB, though smaller overall, offers 5-passenger seating with the option to upgrade to 7-passenger seating. Here’s a complete breakdown of the Mercedes-Benz GLB vs. GLC interior dimensions, including their cargo capacities:

Mercedes-Benz GLB 250

  • Length: 182.4 inches
  • Wheelbase: 111.4 inches
  • Headroom (Front / Rear): 40.7 / 39.3 inches
  • Shoulder Room (Front / Rear): 55.9 / 54.9 inches
  • Legroom (Front / Rear): 41.4 / 39.3 inches
  • Passenger Capacity: 5 (7 optional)
  • Cargo Capacity: 22.0 to 62.0 cubic feet

Mercedes-Benz GLC 300

  • Length: 183.3 inches
  • Wheelbase: 113.1 inches
  • Headroom (Front / Rear): 37.8 / 38.56 inches
  • Shoulder Room (Front / Rear): 57.3 / 56.5 inches
  • Legroom (Front / Rear): 40.8 / 37.3 inches
  • Passenger Capacity: 5 passengers
  • Cargo Capacity: 19.4 to 56.5 cubic feet

GLB vs. GLC: Standard Features

You’re in for a treat when you step into the cabin of the GLB or GLC. Both SUVs are luxuriously equipped to elevate your time on Shavano Park roads with dual-zone automatic climate control, power front seats with memory, illuminated entry, and 3 years of Mercedes me connect services making up their shared standard equipment.

However, with the GLC being one step up in the Mercedes-Benz SUV lineup, it has some additional key features that you would need to upgrade for in the GLB. These include:

  • Heated front seats
  • 40/20/40-split rear seats with power folding
  • 10.25-inch touchscreen multimedia display

Mercedes-Benz GLB vs. GLC: Decide Today at Mercedes-Benz of San Antonio!

If you’re still struggling to decide between the GLB vs. GLC, you can test drive both models at Mercedes-Benz of San Antonio to see how you feel behind the wheel. Before visiting, check out our GLB lease specials for a chance to save! Curious about how these popular models compare to their top luxury competitors? Check out the GLB vs. BMW X3 to continue your research.

*EPA estimated fuel economy. Compare the estimated mpg to the estimated mpg of other vehicles. You may get different mileage depending on how fast you drive, weather conditions and trip length. Your actual highway mileage will probably be less than the highway estimate.

More from Mercedes-Benz of San Antonio

  • 2021 Mercedes-Benz S-Class Interior

      The wait is over for the 2021 Mercedes-Benz S-Class! Anticipation has been hot for this legendary executive sedan, and San Antonio commuters can now secure the keys to their very own 2021 S-Class at Mercedes-Benz of San Antonio. The newest generation of S-Class introduces brand new innovations never before seen in the Mercedes-Benz lineup, including a completely upgraded Mercedes-Benz…

  • 2021 Mercedes-Benz GLE Towing Capacity

    In the market for a new SUV that achieves a good balance of upscale luxury and steadfast capability? The Mercedes-Benz GLE for sale at Mercedes-Benz of San Antonio may just be your perfect match! With strong engine options and the availability of 4MATIC®® AWD, the GLE offers superior performance at every turn, including strong towing specs. Get a…

  • 2021 Mercedes-Benz GLA Price Guide

    Are you searching for your first luxury SUV in the San Antonio area? The compact 2021 Mercedes-Benz GLA SUV serves as a fantastic first-time luxury vehicle. The Mercedes-Benz GLA 250 price starts at $36,230* MSRP for the base model. If you’d like to upgrade to the 4MATIC®® AWD model, the Mercedes-Benz GLA price will be $38,230*…

Saved Vehicles


You don't have any saved vehicles!

Look for this link on your favorites:


Once you've saved some vehicles, you can view them here at any time.

Contact Us

(210) 920-3237

Call Now

9600 San Pedro Avenue • San Antonio, TX 78216

Get Directions

Today's Hours:

Open Today! Sales: 8:30am-8pm

Open Today! Service: 7am-7pm

Open Today! Parts: 8am-6pm

Mercedes-Benz of San Antonio 29.5277566, -98.4980664.