What a Mercedes-Benz GLS costs in Austin: GLS 450, GLS 580 and AMG® GLS 63 compared

A 2026 GLS starts at $90,250 for the GLS 450, $116,150 for the GLS 580 and $151,050 for the AMG® GLS 63, before destination, tax and fees. The engine you choose moves the number, because every step up adds power while seats, cargo room and towing stay the same, and Texas then adds its own registration charges on top.

Most Austin buyers do not need the top of that range. The right GLS is the one whose extra cost buys something you will use on your own roads and in your own week.

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

GLS prices in Austin step up $25,900, then $34,900

From the GLS 450 to the GLS 580 is $25,900 at starting MSRP. From the GLS 580 to the AMG® GLS 63 is another $34,900. The full climb from the GLS 450 to the AMG® GLS 63 is $60,800, and that is the number to weigh against what you will actually use.

Each price is the manufacturer’s suggested figure and excludes destination freight, tax, title, license and dealer fees. Read the table by what changes. Fuel economy moves the other way at the first step, dropping from 21 mpg to 16 mpg, and recovers by 1 mpg at the AMG®.

The rest of the decision is who you are as a driver in Austin. We take it one situation at a time.

The daily drive in Austin fits the GLS 450 at 21 mpg

For a buyer who mostly commutes and runs errands in Austin, the GLS 450 is the answer. It carries the lowest starting price of the three at $90,250 and the highest EPA combined fuel economy at 21 mpg.

On a daily Austin commute, a 375 hp engine has more than enough in reserve for merging onto I-35 and passing on the frontage road.

The fuel economy gap is the part a daily driver feels most. The GLS 450 returns 21 mpg combined, the GLS 580 returns 16 mpg and the AMG® GLS 63 returns 17 mpg. A buyer who fills up every week in Austin pays that difference at the pump all year, on top of the $25,900 or $60,800 already spent at the sticker.

If your GLS spends its life between South Austin, Buda and downtown, we would start you on the GLS 450. Move up only when a specific need in the next two sections pulls you there.

A family of seven in Austin gets the same 84.7 cubic feet at every price

If your reason for a GLS is room for people and gear, the cheapest GLS gives you the same room.

That makes this the easiest section of the decision. A family that fills the third row every weekend from Kyle to Dripping Springs, or one that folds the seats down to haul sports gear, gets identical space from the GLS 450 at $90,250 as from the AMG® GLS 63 at $151,050. The $60,800 between them buys nothing in the cargo area.

So a family should spend its money where the models do differ, and that is the engine. If the household is large and the drives are ordinary, the GLS 450 covers the whole job. If the household also tows or wants more pull on an uphill highway, the next section matters.

We would add one more habit for family buyers. Bring the people who will ride in the third row to the store. Seating and legroom are a question for the passengers, and a few minutes in the seats tell you more than any figure we can print.

Weekend towing out of Austin is 7,700 lbs on every GLS, so buy power for the pull

The GLS 450, the GLS 580 and the AMG® GLS 63 all carry the same limit, so a boat or trailer that fits one fits all three.

What changes is how the engine behaves while it pulls. The GLS 450 makes 375 hp, the GLS 580 makes 510 hp and the AMG® GLS 63 makes 603 hp.

This is where the GLS 580 earns its $25,900 over the GLS 450. It suits a buyer who tows often, who fills the seats and loads the cargo area on the same trip, and who wants the engine working well below its limit. The AMG® GLS 63 adds another 93 hp for $34,900 more, and since its towing limit matches the others, that money buys speed and a different driving character rather than more towing ability.

The honest guidance is to choose it because you want that performance, and to choose the GLS 580 or GLS 450 if towing is the reason, since the limit is the same.

What a GLS costs a buyer in Austin on top of the sticker

In Austin, the figures you pay at the counter come from two places. The first is the manufacturer’s suggested price of $90,250, $116,150 or $151,050, and the second is what Texas charges a buyer to register the car.

Every GLS carries the manufacturer’s basic warranty of 4 years or 50,000 miles. Pair that with the fuel economy gap from the first section and the picture is simple. The GLS 450 costs the least to buy and the least to fuel, and each step up in price and power adds to both.

What Mercedes-Benz of South Austin offers an Austin GLS buyer

We offer both financing specials and leasing specials, and our finance team can walk you through either on a specific GLS. If you have a car to trade, you can bring it in without an appointment. Our online trade-in tool works by license plate, VIN, or make and model, and the make-and-model option gives only a general estimate, based on historical data, and that estimate may change, so the real number comes from a person looking at your car.

Our parts department keeps factory OEM parts in stock, which matters to a GLS owner who plans to keep the car for years.

How the Maybach GLS compares with the AMG® GLS 63

The two models match on towing, with a maximum of 7,700 lbs each. They split on seating. The Maybach seats 5, or 4 with the optional arrangement. The AMG® GLS 63 seats 7, or 6 with the optional arrangement. A buyer who needs three rows gets that only from the AMG®.

Fuel economy also favors the AMG®. The EPA certifies the GLS 600 4matic Maybach at 13 mpg city, 18 mpg highway and 15 mpg combined. It certifies the AMG® GLS 63 4matic Plus at 15 mpg city, 20 mpg highway and 17 mpg combined.

On price, the 2026 AMG® GLS 63 starts at $151,050. The Maybach GLS 600 makes 550 hp, against 603 hp for the AMG® GLS 63. For seven seats and the most power of the trims compared here, the AMG® GLS 63 is the trim to choose. A buyer who needs five seats and the Maybach model name has a clear reason to look at the GLS 600 on those terms.

What separates a GLS sticker price from the out-the-door total in Austin?

The starting MSRP for the 2026 GLS 450 SUV is $90,250, for the GLS 580 SUV it is $116,150, and for the AMG® GLS 63 SUV it is $151,050. The out-the-door total adds Texas sales tax, state and county registration, a title fee and a documentary fee from the dealer. A trade-in allowance is the one item that lowers the tax.

Texas motor vehicle sales tax is 6.25% of the sales price, minus any trade-in allowance (Texas Comptroller of Public Accounts, 2026). The trade-in comes off before the rate applies, so the tax falls as the allowance rises.

Take a hypothetical buyer who trades in a car for a $20,000 allowance on a GLS 450. The tax base falls to $70,250, so the hypothetical tax at 6.25% is about $4,391.

Registration has two parts. The base fee for a car or lighter pickup is $50.75, and the $1 TexasSure charge brings the registration line to $51.75 (Texas Department of Motor Vehicles, 2026). Local county fees are added on top, and the fee chart effective January 1, 2026 puts Travis County at $11.50 (Texas Department of Motor Vehicles, 2026).

The Texas Department of Motor Vehicles’ 2026 title manual places Travis County in the $33 title fee group, the higher of its two rates.

Texas presumes a dealer documentary fee of $225 or less reasonable. A fee above $225 requires a written notification and a cost analysis sent to the Office of Consumer Credit Commissioner before it is charged, under the Texas Administrative Code’s documentary fee rule.

The EPA certification record lists each of these GLS trims as a hybrid. TxDMV states that its $200 annual fee for fully electric vehicles does not apply to hybrid vehicles (Texas Department of Motor Vehicles, 2026).

So the gap between the sticker and the total is taxes and fees, and the tax is figured on the price less any trade-in. The sticker sets the price the tax starts from.

How are used and certified pre-owned GLS prices set in Austin?

Every Certified Pre-Owned Mercedes-Benz in our program comes with a certification process, 24-hour Roadside Assistance, and a one-year unlimited-mileage warranty that can be extended for up to two more years.

The manufacturer sets the rules a vehicle must meet first. To qualify, a Certified Pre-Owned Mercedes-Benz must be 6 years old or newer, have fewer than 75,000 miles and pass a 165+ point inspection. The Certified Pre-Owned Limited Warranty then adds 12 months of coverage with unlimited miles (Mercedes-Benz USA, 2026).

Texas applies its 6.25% sales tax to used vehicles bought from a licensed dealer as well as to new ones (the Comptroller’s 2026 motor vehicle tax guide). A used GLS is taxed at the same rate as a new one, on its sales price less any trade-in.

Frequently asked questions

Which is better, the GLS 450 or the GLS 580?

The GLS 450 is better for a daily driver, and the GLS 580 is better for a buyer who tows or carries a full load often. The GLS 450 starts at $90,250 and returns 21 mpg combined. The GLS 580 starts at $116,150, makes 510 hp against 375 hp, and returns 16 mpg combined.

How much does a Mercedes GLS 63 AMG® cost?

The AMG® GLS 63 starts at $151,050 in manufacturer’s suggested retail price, before destination freight, tax, title, license and dealer fees. It makes 603 hp and returns 17 mpg combined. That is $34,900 more than the GLS 580 and $60,800 more than the GLS 450.

How much can a Mercedes-Benz GLS tow?

The GLS 450, the GLS 580 and the AMG® GLS 63 each have a maximum towing figure of 7,700 lbs. The limit is the same on all three, so more power changes how the engine feels under load and leaves the limit where it is.

How many people does a GLS seat?

All three models seat 7, and a 6-seat arrangement is optional. Maximum cargo space is 84.7 cubic feet on each one, so a larger family gets the same room at every price.

Can I buy a certified pre-owned GLS?

We sell certified pre-owned Mercedes-Benz vehicles.

A GLS in Austin costs $90,250 to $151,050, and the engine sets the price

The GLS 450 is the right GLS for most Austin buyers, because the daily drive, the family seating and the towing limit are all the same or close to it across the three models. Choose the GLS 580 when you tow often or load the car to the roof, and pay for the extra power you will feel. Choose the AMG® GLS 63 when you want Mercedes-AMG® performance for its own sake, since it does not tow or carry more than the others.

Mercedes-Benz of South Austin sits on the I-35 frontage road at 78748

We are a Mercedes-Benz dealership at 10900 S I-35 Frontage Rd, Austin, TX 78748, with sales, service, parts and financing under one roof. Customers rate us 4.6 stars across 830 Google reviews (Google, 2026). We are part of Group 1 Automotive, which posted record full-year revenue of $22.6 billion, up 13.2%, and sold 459,000 new and used vehicles, a company record (Group 1 Automotive, 2026).

In a February 2026 Google review of Mercedes-Benz of South Austin, Kalyn S. wrote: “Exceptional service at Mercedes-Benz of South Austin Service Department. Imad, my Service Advisor, was knowledgeable, professional, and very thorough. They completed a full assessment and handled the alignment on my vehicle with great attention to detail. This was my first time visiting the South Austin location, and I’ll definitely be servicing my car here moving forward.” A buyer who chooses us gets a Mercedes-Benz store on the south side of Austin that stays with the car after the sale.

See our current Mercedes-Benz inventory at Mercedes-Benz of South Austin.

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.