Mercedes-Benz GLB seating, cargo and trim prices for Austin drivers

Mercedes-Benz of South Austin sells the GLB new at 10900 S I-35 Frontage Rd, so Austin drivers can sit in its seats and check its cargo room before they buy. The seating, cargo and pricing figures below come from Mercedes-Benz’s own published 2026 specifications.

The GLB comes in three 2026 trims, with starting prices from $43,800 to $60,600. We also sell the GLA and the EQB SUV new, so the GLB’s room can be weighed against both.

Keep reading below, then schedule a test drive in Austin. Bringing your own numbers to the lot settles this faster than any spec sheet.

What seating comes in the Mercedes-Benz GLB?

Seating is the cabin detail the 2026 specifications cover, and it is the place to start. According to Mercedes-Benz’s published 2026 specifications, the GLB 250, the GLB 250 4MATIC® and the AMG® GLB 35 each seat five as standard, with a seven-seat layout available as an option. The seat count is the same on every trim, so the trim choice does not change how many people ride. That keeps the decision a question of price and of what each trim adds.

How many people does the Mercedes-Benz GLB seat?

Five people, as standard, on the GLB 250, GLB 250 4MATIC® and AMG® GLB 35. Seven is available as an option on each of those trims, according to Mercedes-Benz’s published 2026 specifications.

Say, hypothetically, your household is two adults and three kids. The five standard seats cover all five of you, so you do not pay extra to seat your family. If you regularly drive more people than that, the seven-seat option is the one to weigh before you buy, since it is optional on every trim.

How much cargo does the Mercedes-Benz GLB hold?

Bags go in the cargo area, which holds up to 62.0 cubic feet on each 2026 GLB trim, according to Mercedes-Benz’s published 2026 specifications. The figure is the same for the GLB 250, GLB 250 4MATIC® and AMG® GLB 35, so the trim you pick does not change how much you can load.

Say, hypothetically, you are packing for a weekend with two roller bags and a folding stroller. Measure those bags against the 62.0 cubic feet figure before you decide the GLB is big enough for your trips.

What does each Mercedes-Benz GLB trim cost and add inside?

The GLB 250 SUV starts at $43,800 and the GLB 250 4MATIC® starts at $45,800, both as starting MSRP for the 2026 model year. The AMG® GLB 35 SUV starts at $60,600, and Mercedes-Benz lists two priced packages for it.

Those packages are the Exclusive Trim at $2,150 and the Pinnacle Trim at $3,450. Both are optional, extra-cost packages, not standard equipment, so the $60,600 starting price does not include them.

Say, hypothetically, you want the Pinnacle Trim package on the AMG® GLB 35. Its $3,450 price comes on top of the $60,600 starting MSRP, so plan on the higher figure.

Which compact Mercedes-Benz SUV has more room, the GLA or the GLB?

The GLB’s first-row legroom is 41.1 inches, against 41.0 on the GLA 250, and its second row is 38.1 inches, against 38.0. Its maximum cargo volume is 62.0 cubic feet, against 50.5 on the GLA 250, and it also lists 29.1 inches of third-row legroom.

We also sell the EQB SUV new, and it sits in the same compact Mercedes-Benz SUV range.

Frequently asked questions

What does the Mercedes-Benz new-vehicle warranty cover on a GLB?

The GLB carries a basic warranty of 4 years or 50,000 miles, according to Mercedes-Benz’s 2026 warranty and service booklet. That basic term applies to the model line, so it is the same whichever GLB trim you choose.

Can I trade in my current car when I come to see the GLB?

Yes. Customers can bring in a trade without an appointment. That means you do not need to book a time before you bring your current car in.

How do I apply for financing on a GLB at Mercedes-Benz of South Austin?

Start with our secure finance application, which you can complete online. We offer both financing specials and leasing specials, so you can compare the two ways to pay.

What do buyers say about the sales process at Mercedes-Benz of South Austin?

One buyer described the process as quick and low pressure. In an April 2026 Google review, Joe G. wrote: “Quite literally the easiest, fastest and lowest pressure car buying experience I’ve had. Highly recommend Kirby and the team at South Austin Mercedes. Thank y’all again!” That is one customer’s account of one visit.

What does Mercedes-Benz Certified Pre-Owned cover on a used GLB?

Certified Pre-Owned covers models six years old or newer with less than 75,000 miles. Mercedes-Benz USA applies a 165+ point inspection to certain certified vehicles with internal combustion engines, and electric vehicles get different inspection points. After the CPO Limited Warranty ends, the CPO Extended Limited Warranty can add up to 2 more years with unlimited miles (Mercedes-Benz USA).

Why see the Mercedes-Benz GLB at Mercedes-Benz of South Austin?

Our Google record, as of October 2026, is 4.6 stars across 830 reviews, and 89% of those reviews are five-star. The same-brand dealers in this market compare as follows on Google.

We are part of Group 1 Automotive, and we offer same-day service and 48 service bays. In a July 2026 5-star Google review, Tracy R. wrote: “I was truly happy with service personal, Justin Frazier. He was friendly and professional. Service department was done in a timely manner. #Mercedesfaimly”

In a July 2026 5-star Google review, Fiona wrote: “We had an excellent experience with Ben From the beginning, he was very friendly, professional, and patient. He listened to what we needed and worked hard to help us get the Sprinter we wanted at a great price. He kept us informed throughout the process and made everything simple and stress-free. We truly appreciate his effort and dedication. Thank you for making this such a positive car-buying experience. We highly recommend him!”

A buyer who wants to sit in a GLB before deciding can start with the inventory and the trade-in tool online, then finish in store. Browse the new and used Mercedes-Benz inventory, value your trade and apply for financing online, then visit us at 10900 S I-35 Frontage Rd, Austin, TX 78748.

Mercedes-Benz of South Austin answers this question against the specific vehicle in front of you rather than the model in general. Value your trade and get pre-approved online, then see us at our Austin showroom, or call 512-646-6699.

Disclaimer: Vehicle features, specifications, pricing, options, and availability may vary based on production timelines and dealership inventory; images are for illustrative purposes only. Starting MSRP figures are national and exclude destination freight charges, tax, title, license, and dealer fees. Standard and available equipment varies by trim, configuration, and model year; confirm the specification of the individual vehicle before purchase. Maximum towing and payload ratings depend on cab, bed, drivetrain, and equipment configuration; see the vehicle’s Owner’s Manual and trailering guide for limits. Electric range and charging times vary with battery, configuration, temperature, terrain, load, and driving habits. Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. Financing and pre-approval are subject to credit approval. Contact Mercedes-Benz of South Austin for complete details regarding current vehicle inventory, pricing, and equipment.