2026 Mercedes-Benz GLS 450

new

Automatic

Obsidian Black Metallic exterior

$103,590

Mercedes-Benz of Westmont

4.4

2026 Mercedes-Benz GLS 450 | new

$103,590

MSRP: $103,590

obsidian black metallic exterior, black interior

Automatic

All-wheel Drive

Mercedes-Benz of Westmont

4.4

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2026 Mercedes-Benz GLS 450

new

Automatic

Polar White exterior

$104,105

Mercedes-Benz of Westmont

4.4

2026 Mercedes-Benz GLS 450 | new

$104,105

MSRP: $104,105

polar white exterior, bahia brown/black interior

Automatic

All-wheel Drive

Mercedes-Benz of Westmont

4.4

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2026 Mercedes-Benz GLS 450

new

Automatic

MANUFAKTUR Alpine Grey exterior

$106,005

Mercedes-Benz of Westmont

4.4

2026 Mercedes-Benz GLS 450 | new

$106,005

MSRP: $106,005

manufaktur alpine grey exterior, black interior

Automatic

All-wheel Drive

Mercedes-Benz of Westmont

4.4

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2026 Mercedes-Benz GLS 450

new

Automatic

Obsidian Black Metallic exterior

$108,005

Mercedes-Benz of Westmont

4.4

2026 Mercedes-Benz GLS 450 | new

$108,005

MSRP: $108,005

obsidian black metallic exterior, black interior

Automatic

All-wheel Drive

Mercedes-Benz of Westmont

4.4

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2026 Mercedes-Benz GLS 450

new

Automatic

Obsidian Black Metallic exterior

$108,055

Mercedes-Benz of Westmont

4.4

2026 Mercedes-Benz GLS 450 | new

$108,055

MSRP: $108,055

obsidian black metallic exterior, black interior

Automatic

All-wheel Drive

Mercedes-Benz of Westmont

4.4

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2018 Mercedes-Benz GLS 450

used

Unknown

Blue exterior

$22,900

Exotic Motors

4.2

2018 Mercedes-Benz GLS 450 | used

$22,900

blue exterior, beige interior

Unknown

All-wheel Drive

Exotic Motors

4.2

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2019 Mercedes-Benz GLS 450

used

Unknown

Blue exterior

$32,900

Exotic Motors

4.2

2019 Mercedes-Benz GLS 450 | used

$32,900

blue exterior, tan interior

Unknown

All-wheel Drive

Exotic Motors

4.2

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2022 Mercedes-Benz GLS 450

used

Automatic

Black exterior

$50,451

Heritage Cadillac

4.0

2022 Mercedes-Benz GLS 450 | used

$50,451

black exterior, black interior

Automatic

All-wheel Drive

Heritage Cadillac

4.0

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2025 Mercedes-Benz GLS 450

new

Automatic

Polar White exterior

$87,773

Kunes Honda of Sycamore

4.0

2025 Mercedes-Benz GLS 450 | new

$87,773

MSRP: $90,980

polar white exterior, macchiato beige interior

Automatic

All-wheel Drive

Kunes Honda of Sycamore

4.0

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2023 Mercedes-Benz GLS 450

used

Automatic

Silver exterior

$49,000

Schaumburg Ford

3.9

2023 Mercedes-Benz GLS 450 | used

$49,000

silver exterior, black interior

Automatic

All-wheel Drive

Schaumburg Ford

3.9

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2022 Mercedes-Benz GLS 450

used

Automatic

Black exterior

$50,477

Castle Buick GMC of North Riverside

3.9

2022 Mercedes-Benz GLS 450 | used

$50,477

black exterior, black leather interior

Automatic

All-wheel Drive

Castle Buick GMC of North Riverside

3.9

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2022 Mercedes-Benz GLS 450

used

Automatic

Polar White exterior

$52,000

McGrath BMW Of Elmhurst

3.6

2022 Mercedes-Benz GLS 450 | used

$52,000

polar white exterior, black interior

Automatic

All-wheel Drive

McGrath BMW Of Elmhurst

3.6

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2023 Mercedes-Benz GLS 450

used

Automatic

Black exterior

$62,500

McGrath BMW Of Elmhurst

3.6

2023 Mercedes-Benz GLS 450 | used

$62,500

black exterior, black interior

Automatic

All-wheel Drive

McGrath BMW Of Elmhurst

3.6

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2022 Mercedes-Benz GLS 450

used

Automatic

Black exterior

$51,500

Honda of Downtown Chicago

3.5

2022 Mercedes-Benz GLS 450 | used

$51,500

black exterior, black interior

Automatic

All-wheel Drive

Honda of Downtown Chicago

3.5

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2017 Mercedes-Benz GLS 450

used

Automatic

Gray exterior

$15,497

Ogden Motors

N/A

2017 Mercedes-Benz GLS 450 | used

$15,497

gray exterior, black interior

Automatic

All-wheel Drive

Ogden Motors

N/A

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2019 Mercedes-Benz GLS 450

used

Automatic

Iridium Silver Metallic exterior

$20,945

Adam Auto Group

N/A

2019 Mercedes-Benz GLS 450 | used

$20,945

iridium silver metallic exterior, black interior

Automatic

All-wheel Drive

Adam Auto Group

N/A

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2018 Mercedes-Benz GLS 450

used

Automatic

Black exterior

$20,985

Alpha Luxury Motors

N/A

2018 Mercedes-Benz GLS 450 | used

$20,985

black exterior, black interior

Automatic

All-wheel Drive

Alpha Luxury Motors

N/A

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2019 Mercedes-Benz GLS 450

used

Automatic

Polar White exterior

$22,995

Autos of Chicago

N/A

2019 Mercedes-Benz GLS 450 | used

$22,995

polar white exterior, ginger beige/black interior

Automatic

All-wheel Drive

Autos of Chicago

N/A

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2017 Mercedes-Benz GLS 450

used

Automatic

Iridium Silver Metallic exterior

$23,950

Auto Park Imports

N/A

2017 Mercedes-Benz GLS 450 | used

$23,950

iridium silver metallic exterior, ginger interior

Automatic

All-wheel Drive

Auto Park Imports

N/A

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2019 Mercedes-Benz GLS 450

used

Automatic

Black exterior

$23,983

Star Motor Sales

N/A

2019 Mercedes-Benz GLS 450 | used

$23,983

black exterior, tan interior

Automatic

All-wheel Drive

Star Motor Sales

N/A

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2019 Mercedes-Benz GLS 450

used

Automatic

Lunar Blue Metallic exterior

$25,499

Star Motor Sales

N/A

2019 Mercedes-Benz GLS 450 | used

$25,499

lunar blue metallic exterior, ginger beige/espresso interior

Automatic

All-wheel Drive

Star Motor Sales

N/A

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2020 Mercedes-Benz GLS 450

used

Automatic

Selenite Grey Metallic exterior

$25,895

Little House of Cars

N/A

2020 Mercedes-Benz GLS 450 | used

$25,895

selenite grey metallic exterior, espresso brown/magma grey interior

Automatic

All-wheel Drive

Little House of Cars

N/A

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2019 Mercedes-Benz GLS 450

used

Automatic

Blue exterior

$25,990

Auto Gallery Chicago

N/A

2019 Mercedes-Benz GLS 450 | used

$25,990

blue exterior, almond interior

Automatic

All-wheel Drive

Auto Gallery Chicago

N/A

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2019 Mercedes-Benz GLS 450

used

Automatic

designo Diamond White Metallic exterior

$27,980

Ultimo Motors East

N/A

2019 Mercedes-Benz GLS 450 | used

$27,980

designo diamond white metallic exterior, espresso brown interior

Automatic

All-wheel Drive

Ultimo Motors East

N/A

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2020 Mercedes-Benz GLS 450

used

Automatic

Black exterior

$31,980

Ultimo Motors East

N/A

2020 Mercedes-Benz GLS 450 | used

$31,980

black exterior, black interior

Automatic

All-wheel Drive

Ultimo Motors East

N/A

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2020 Mercedes-Benz GLS 450

used

Automatic

DKBLUE exterior

$32,512

Luxury Automax

N/A

2020 Mercedes-Benz GLS 450 | used

$32,512

dkblue exterior, tan interior

Automatic

All-wheel Drive

Luxury Automax

N/A

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2020 Mercedes-Benz GLS 450

used

Automatic

Lunar Blue Metallic exterior

$33,495

OKAZ MOTORS

N/A

2020 Mercedes-Benz GLS 450 | used

$33,495

lunar blue metallic exterior, macchiato beige interior

Automatic

All-wheel Drive

OKAZ MOTORS

N/A

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2020 Mercedes-Benz GLS 450

used

Automatic

Brilliant Blue Metallic exterior

$33,855

Autos of Chicago

N/A

2020 Mercedes-Benz GLS 450 | used

$33,855

brilliant blue metallic exterior, black interior

Automatic

All-wheel Drive

Autos of Chicago

N/A

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2021 Mercedes-Benz GLS 450

used

Automatic

Lunar Blue Metallic exterior

$37,499

Star Motor Sales

N/A

2021 Mercedes-Benz GLS 450 | used

$37,499

lunar blue metallic exterior, macchiato beige/black interior

Automatic

All-wheel Drive

Star Motor Sales

N/A

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2021 Mercedes-Benz GLS 450

used

Automatic

Black exterior

$38,995

Affinity Auto Sales

N/A

2021 Mercedes-Benz GLS 450 | used

$38,995

black exterior, brown interior

Automatic

All-wheel Drive

Affinity Auto Sales

N/A

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Mercedes-Benz GLS 450 vehicles for Sale in Illinois

220 Results

2026 Mercedes-Benz GLS 450 | new

2026 Mercedes-Benz GLS 450 | new

2026 Mercedes-Benz GLS 450 | new

2026 Mercedes-Benz GLS 450 | new

2026 Mercedes-Benz GLS 450 | new

2018 Mercedes-Benz GLS 450 | used

2019 Mercedes-Benz GLS 450 | used

2022 Mercedes-Benz GLS 450 | used

2025 Mercedes-Benz GLS 450 | new

2023 Mercedes-Benz GLS 450 | used

2022 Mercedes-Benz GLS 450 | used

2022 Mercedes-Benz GLS 450 | used

2023 Mercedes-Benz GLS 450 | used

2022 Mercedes-Benz GLS 450 | used

2017 Mercedes-Benz GLS 450 | used

2019 Mercedes-Benz GLS 450 | used

2018 Mercedes-Benz GLS 450 | used

2019 Mercedes-Benz GLS 450 | used

2017 Mercedes-Benz GLS 450 | used

2019 Mercedes-Benz GLS 450 | used

2019 Mercedes-Benz GLS 450 | used

2020 Mercedes-Benz GLS 450 | used

2019 Mercedes-Benz GLS 450 | used

2019 Mercedes-Benz GLS 450 | used

2020 Mercedes-Benz GLS 450 | used

2020 Mercedes-Benz GLS 450 | used

2020 Mercedes-Benz GLS 450 | used

2020 Mercedes-Benz GLS 450 | used

2021 Mercedes-Benz GLS 450 | used

2021 Mercedes-Benz GLS 450 | used