2027 Mercedes-Benz GLS Vs. 2026 Mercedes-Benz GLS in Peoria, IL
Compare the 2027 Mercedes-Benz GLS VS 2026 Mercedes-Benz GLS
What's New for Your Luxury SUV
Choosing the ideal model year for your family journeys across Peoria County requires exploring cutting-edge MBUX technology, refined cabin craftsmanship, and potent mild-hybrid performance. We compare the sophisticated 2027 Mercedes-Benz GLS with the proven 2026 model to help you find the ultimate luxury flagship at Mercedes-Benz of Peoria.
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Mercedes-Benz GLS Model Years Head-to-Head
Key Upgrades & Differences
Use these insights to evaluate how the 2027 Mercedes-Benz GLS updates elevate your executive commutes along I-74, weekend trips to the country club, and smooth family road trips across Central Illinois.
MBUX & Technology Enhancements
Intelligent, next-generation infotainment designed to adapt seamlessly to driver preferences on every journey.
- 2027 GLS: Features advanced AI voice processing with zero-layer display navigation and expanded zero-touch convenience shortcuts.
- 2026 GLS: Features dual 12.3-inch high-resolution displays with standard "Hey Mercedes" voice control and wireless smartphone integration.
Cabin Luxury & Appointments
First-class seating and immaculate material selections tailored around ultimate passenger relaxation.
- 2027 GLS: Introduces refined ambient interior lighting themes, updated MANUFAKTUR trim choices, and upgraded wireless device charging speeds.
- 2026 GLS: Standard heating and ventilation for front seats with available multi-contour massage and heated rear armrests.
Acoustic Comfort & Ride Quality
Precision air suspension and acoustic glass keep Central Illinois highway wind and tire noise completely insulated.
- 2027 GLS: Enhanced Acoustic Comfort Package adds double-laminated infrared-reflecting glass for a whisper-quiet sanctuary.
- 2026 GLS: Standard AIRMATIC® air suspension delivers an extraordinarily smooth ride across variable road surfaces.
Flexible 3-Row Capacity
Unrivaled room for seven adults or versatile cargo configurations for long-distance travel across the Midwest.
- Both Model Years: Offer spacious standard 3-row seating for up to 7 passengers with optional 6-seat captain's chair configuration.
- Cargo Space: Expanding cargo capacity up to 84.7 cubic feet with power-folding 2nd and 3rd-row seating.
4MATIC® Performance & Efficiency
Mild-hybrid engine technology paired with intelligent all-wheel drive for confident, year-round performance.
- Engine Tech: 48-volt mild-hybrid system provides seamless stop-start operation and an instant electric boost up to 21 hp.
- Towing Power: Confident pulling power with up to 7,700 lbs maximum towing capacity for boats and campers.
Exterior Elegance & Lighting
Unmistakable presence highlighted by iconic Mercedes-Benz styling and advanced LED illumination.
- 2027 GLS: Features refreshed front grille louvers, refined LED taillight signforms, and dynamic puddle logo projection graphics.
- 2026 GLS: Regal front fascia with prominent star grille emblem and standard MULTIBEAM LED headlights.
The 2027 Mercedes-Benz GLS Advantage
While the 2026 Mercedes-Benz GLS stands as an benchmark of full-size luxury and smooth performance, the 2027 model takes refinement to even greater heights. Featuring enhanced MBUX artificial intelligence responses, fine-tuned AIRMATIC® suspension calibration, advanced acoustic insulation, and new custom aesthetic options, the 2027 GLS ensures every journey through Peoria is executed with unmatched sophistication and composure.
Why Choose Mercedes-Benz of Peoria?
At Mercedes-Benz of Peoria, acquiring a luxury flagship SUV is an extraordinary experience tailored to your exact standards. Whether you wish to order a customized 2027 Mercedes-Benz GLS or discover a pristine 2026 model currently in our showroom, our attentive team provides world-class assistance at every step.
Located conveniently in Peoria, IL, we proudly serve luxury enthusiasts across East Peoria, Pekin, Morton, Dunlap, Washington, and Bloomington. Visit our dealership today to compare these distinguished models side-by-side and experience superior automotive service!
2027 Mercedes-Benz GLS
Features updated MBUX software, enhanced acoustic soundproofing, luxurious 3-row comfort, and standard 4MATIC® AWD performance.
View 2027 GLS Inventory2026 Mercedes-Benz GLS
Potent 375-hp mild-hybrid engine, standard dual 12.3-inch widescreen displays, AIRMATIC® suspension, and 7,700 lbs towing capacity.
View 2026 GLS InventorySee the Mercedes-Benz GLS in Person
Experience the luxurious craftsmanship, explore the spacious 3-row interior, and feel the refined power of the mild-hybrid powertrain. Visit our showroom at Mercedes-Benz of Peoria!
Next Steps for Securing Your Mercedes-Benz GLS
Our sales specialists are ready to help you compare model years, customize trim options, and schedule a personalized demonstration.
View GLS Inventory
Explore current availability, trim configurations, exterior colors, and luxury options online.
Finance & Lease Resources
Discover customized lease structures, competitive APR financing, and online credit applications.
Trade-In Value Tool
Receive a complimentary evaluation for your pre-owned luxury vehicle toward a new GLS.
Contact Mercedes-Benz of Peoria
Speak directly with our concierge team to schedule a Private Demonstration or VIP test drive.
Questions and Answers About 2027 vs. 2026 Mercedes-Benz GLS
What are the main updates in the 2027 Mercedes-Benz GLS compared to the 2026 GLS?
The 2027 Mercedes-Benz GLS introduces updated MBUX infotainment software with enhanced AI voice recognition, expanded acoustic cabin dampening, subtle exterior lighting and grille refinements, new MANUFAKTUR leather combinations, and recalibrated driver assistance systems compared to the 2026 model.
How does MBUX technology differ between the 2026 and 2027 Mercedes-Benz GLS?
While both models utilize dual 12.3-inch displays, the 2027 GLS benefits from updated processing software that delivers faster zero-layer navigation updates, smarter natural voice command responses, and expanded wireless smartphone synchronization features over the 2026 GLS.
Is the cabin quieter in the 2027 GLS compared to the 2026 model?
Yes. The 2027 GLS features enhanced acoustic dampening and acoustic glass technology that further reduces wind noise and tire roar during highway driving along I-74, building upon the quiet environment of the 2026 model.
Are there exterior cosmetic changes between the 2026 and 2027 GLS?
Yes, the 2027 GLS showcases subtle exterior refinements, including updated LED rear lighting signforms, redesigned alloy wheel patterns, refreshed front grille accents, and new exterior paint color choices over the 2026 version.
How do the driver assistance features compare between 2026 and 2027 Mercedes-Benz GLS models?
Both models come equipped with standard Mercedes-Benz safety suites. However, the 2027 GLS incorporates refined radar and camera calibration for smoother DISTRONIC® distance control, more natural lane-keeping interventions, and enhanced PRE-SAFE® system responses.
Does the powertrain horsepower change between the 2026 and 2027 GLS 450?
Both model years utilize the turbocharged 3.0L inline-6 (GLS 450 4MATIC®) and the 4.0L biturbo V8 (GLS 580 4MATIC®), both equipped with 48V mild-hybrid Integrated Starter-Generator (ISG) systems for immediate responsiveness and smoothness. However, the 2027 model year receives performance enhancements—boosting the GLS 450's torque output to 413 lb-ft and increasing the GLS 580's total output to 530 horsepower and 553 lb-ft of torque.
What is the max towing capacity for the 2027 and 2026 Mercedes-Benz GLS?
When properly equipped, both the 2027 and 2026 Mercedes-Benz GLS models offer a maximum towing capacity of up to 7,700 lbs, making them fully capable of hauling boats and recreational trailers.
Is 4MATIC® All-Wheel Drive standard on both model years?
Yes, 4MATIC® Fully Variable All-Wheel Drive comes standard on both the 2026 and 2027 GLS, providing optimal power distribution and winter traction for challenging Central Illinois weather.
Where can I test drive a new Mercedes-Benz GLS in Peoria, IL?
You can schedule a private demonstration and test drive of both the 2027 and 2026 Mercedes-Benz GLS at Mercedes-Benz of Peoria, conveniently located in Peoria, IL, serving East Peoria, Pekin, Morton, Dunlap, and Bloomington.
Why purchase your luxury SUV from Mercedes-Benz of Peoria?
Mercedes-Benz of Peoria provides a premier luxury shopping experience, offering tailored lease and financing options, certified Mercedes-Benz service experts, trade-in valuations, and personalized concierge care.
Take the Next Step at Mercedes-Benz of Peoria
Ready to experience the ultimate luxury 3-row SUV? Visit Mercedes-Benz of Peoria today or contact our team to reserve your VIP test drive!