The Most Spacious 2026 Mercedes-Benz SUVs: A Cargo & Seating Guide

Finding the right SUV means balancing space, luxury, and everyday practicality. For families and professionals in Brampton and across Ontario, cargo capacity and seating flexibility often determine which model fits best. The 2026 Mercedes-Benz SUV lineup offers eight distinct models, each designed to meet different space requirements without sacrificing the comfort and technology Mercedes-Benz is known for.

This guide examines every 2026 Mercedes-Benz SUV based on hard numbers—maximum cargo capacity, seating configurations, and practical dimensions. From the compact GLA to the flagship GLS, you'll see how each model stacks up to help you identify which SUV matches your family's needs.

At a Glance: 2026 Mercedes-Benz SUV Cargo & Seating Comparison

GLS SUV: The Cargo Champion

The 2026 GLS SUV delivers the most cargo space in the Mercedes-Benz lineup with 2,400 litres of maximum capacity. This three-row SUV seats seven passengers as standard or six with optional captain's chairs in the second row. Behind the third row, you'll find 355 litres of cargo space—enough for grocery runs or airport luggage. Fold the second and third rows flat, and the GLS transforms into a hauling powerhouse.

Key Specs:

• Seating: 7 (6 optional)
• Cargo: 355 L (all seats up) to 2,400 L (max)
• Wheelbase: 3,210 mm
• Best for: Large families needing maximum cargo and three-row seating

The GLS is ideal for families who regularly transport seven people and still need room for gear. Three-row flexibility makes weekend trips or carpools manageable without sacrificing comfort.

EQS SUV: Luxury and Electric Efficiency Combined

The all-electric 2026 EQS SUV offers 2,100 litres of maximum cargo capacity while seating five as standard or seven with the optional third row. Behind the second row, you'll have 645 litres of cargo space. The flat battery floor beneath the cargo area creates a more usable, obstruction-free loading zone compared to traditional SUVs.

Key Specs:

• Seating: 5 (7 optional)
• Cargo: 645 L (seats up) to 2,100 L (max)
• Electric range: 510 km
• Best for: Buyers seeking flagship luxury, electric efficiency, and three-row flexibility

The EQS SUV suits families who want cutting-edge electric technology without compromising on space. The optional third row adds versatility for occasional passenger needs, while the spacious second row remains the focus for daily comfort.

GLE SUV: The Versatile Midsize

The 2026 GLE SUV balances space and maneuverability with 2,055 litres of maximum cargo capacity. This midsize SUV seats five passengers as standard, with an optional third row for occasional use. With all seats upright, the GLE provides 943 litres of cargo space—more than enough for weekly shopping or sports equipment.

Key Specs:

• Seating: 5 (7 optional)
• Cargo: 943 L (seats up) to 2,055 L (max)
• Towing capacity: 3,500 kg (7,700 lbs)
• Best for: Families who need flexibility, strong towing, and confident all-weather driving

The GLE is built for families who split time between city driving and weekend getaways. The optional third row adds passenger capacity when needed, while the generous cargo area handles everything from luggage to camping gear.

G-Class SUV: Rugged Icon With Serious Space

The 2026 G-Class SUV offers 2,010 litres of maximum cargo capacity in its signature boxy design. This five-passenger SUV provides 640 litres of cargo space with all seats in place. The upright construction and flat load floor make packing large items straightforward.

Key Specs:

• Seating: 5
• Cargo: 640 L (seats up) to 2,010 L (max)
• Best for: Buyers who value heritage design, off-road capability, and strong cargo capacity in a five-seat layout

The G-Class appeals to those who want a distinctive SUV that stands out visually while delivering substantial cargo room. Its rugged construction and spacious interior work for daily driving and outdoor adventures alike.

GLB SUV: Compact Size, Three-Row Flexibility

The 2026 GLB SUV maximizes interior space within a compact footprint, offering 1,805 litres of maximum cargo capacity. This model seats five as standard, with an optional third row that accommodates seven passengers. With the third row in place, cargo space drops to 179 litres, but fold it flat and you regain the full 570 litres behind the second row.

Key Specs:

• Seating: 5 (7 optional)
• Cargo: 570 L (5-seater) to 1,805 L (max)
• Third-row cargo: 179 L (7-seater, third row up)
• Best for: Families who need occasional seven-passenger seating in a manageable size

The GLB works well for families who want three-row capability without committing to a larger SUV. The compact exterior makes city parking easier, while the flexible seating handles carpools or family trips when needed.

EQB SUV: Electric Versatility in a Compact Package

The all-electric 2026 EQB SUV delivers 1,710 litres of maximum cargo capacity while offering five-passenger seating as standard or seven with the optional third row. Behind the second row, you'll find 495 litres of cargo space. Like the EQS SUV, the EQB's flat battery floor creates a more usable cargo area.

Key Specs:

• Seating: 5 (7 optional)
• Cargo: 495 L (seats up) to 1,710 L (max)
• Electric range: 404 km (EQB 250+) / 330 km (EQB 300 4MATIC)
• Best for: Families seeking electric efficiency, compact dimensions, and optional three-row seating

The EQB suits urban families who prioritize electric driving and occasional third-row use. The compact size simplifies parking and daily commuting, while the optional third row adds flexibility for weekend activities.

GLC SUV: Balanced Midsize Practicality

The 2026 GLC SUV offers 1,680 litres of maximum cargo capacity with seating for five passengers. With all seats in place, you'll have 620 litres of cargo space—a practical amount for groceries, luggage, or sports gear. The GLC's dimensions strike a balance between interior space and exterior maneuverability.

Key Specs:

• Seating: 5
• Cargo: 620 L (seats up) to 1,680 L (max)
• Towing capacity: 1,588 kg (3,500 lbs)
• Best for: Buyers who want a refined midsize SUV with strong cargo capacity and no third row

The GLC works for couples or families who don't need a third row but want generous cargo space and a comfortable ride. The midsize format handles Ontario winters confidently while remaining easy to park in urban settings.

EQE SUV: Electric Midsize With Smart Space

The all-electric 2026 EQE SUV provides 1,675 litres of maximum cargo capacity while seating five passengers. With all seats upright, the EQE offers 520 litres of cargo space. The flat battery floor enhances cargo flexibility, allowing you to load larger items without working around a raised floor hump.

Key Specs:

• Seating: 5
• Cargo: 520 L (seats up) to 1,675 L (max)
• Electric range: 407 km (EQE 350 4MATIC) / 425 km (EQE 500 4MATIC)
• Best for: Buyers seeking electric luxury, midsize dimensions, and practical cargo space

The EQE SUV suits buyers who want electric efficiency and a refined driving experience without needing a third row. The spacious cargo area handles weekly shopping and luggage with ease.

GLA SUV: Compact Dimensions, Smart Interior

The 2026 GLA SUV delivers 1,420 litres of maximum cargo capacity in the most compact Mercedes-Benz SUV package. This five-passenger model offers 425 litres of cargo space with all seats in place—enough for daily errands and weekend trips. The compact exterior dimensions make the GLA easy to maneuver in tight urban environments.

Key Specs:

• Seating: 5
• Cargo: 425 L (seats up) to 1,420 L (max)
• Best for: Urban drivers who prioritize parking ease, fuel efficiency, and compact luxury

The GLA works for singles, couples, or small families who value a smaller footprint without sacrificing Mercedes-Benz refinement. The cargo area handles groceries, gym bags, or luggage for two without issue.

Which 2026 Mercedes-Benz SUV Fits Your Needs?

Choosing the right Mercedes-Benz SUV depends on how you'll use the space. Here's a quick guide:

For maximum cargo and three-row seating: The GLS SUV leads with 2,400 litres of cargo space and seating for up to seven passengers. It's built for large families who need both people and cargo capacity.

For electric luxury with space: The EQS SUV combines 2,100 litres of cargo capacity with all-electric efficiency and optional three-row seating. It suits families who want cutting-edge technology and flagship comfort.

For balanced versatility: The GLE SUV offers 2,055 litres of cargo space, optional three-row seating, and strong towing capacity. It's ideal for families who split time between daily driving and weekend adventures.

For rugged capability: The G-Class SUV delivers 2,010 litres of cargo space in a distinctive design that handles both city streets and backcountry trails.

For compact three-row flexibility: The GLB SUV maximizes space in a smaller package, offering 1,805 litres of cargo capacity and optional seven-passenger seating. It works for families who need occasional third-row use without a full-size SUV.

For electric efficiency in a compact format: The EQB SUV provides 1,710 litres of cargo space with optional three-row seating and all-electric driving. It suits urban families who prioritize efficiency and flexibility.

For refined midsize practicality: The GLC SUV offers 1,680 litres of cargo capacity in a five-passenger layout. It balances interior space with manageable exterior dimensions.

For electric midsize comfort: The EQE SUV delivers 1,675 litres of cargo space with all-electric efficiency and a flat cargo floor. It's built for buyers who want luxury and practicality without a third row.

For urban agility: The GLA SUV provides 1,420 litres of cargo capacity in the most compact Mercedes-Benz package. It's ideal for city driving and parking ease.

Experience the 2026 Mercedes-Benz SUV Lineup in Brampton

Understanding cargo and seating specs helps narrow your options, but nothing replaces sitting behind the wheel and loading your gear into the cargo area. Visit our Brampton dealership to explore the 2026 Mercedes-Benz SUV lineup and see which model fits your family's space requirements. Our team can walk you through each model's seating configurations and cargo flexibility to help you make the right choice.

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• Ranking Every New 2025 Mercedes-Benz SUV According to Price
• The New 2025 Mercedes-Benz G-Class Has Arrived
• Comparing the 2025 Mercedes-Benz GLE PHEV to the GLE 450: Which One is Right for You?