2026 GLS Seating Setup
Seven passengers can ride in the standard setup, while six fit with optional second-row captain chairs. This applies across all three luxury trims for families requiring maximum cabin flexibility. Review specific cargo and legroom dimensions below before exploring our available inventory.
Executive Seating and Passenger Comfort
The cabin of the 2026 GLS provides exceptional comfort across all three rows. Buyers can choose the standard second-row bench seat or opt for individual captain chairs. The captain chairs provide elevated comfort and create a convenient pass-through to the third row. This flexibility ensures everyone enjoys abundant space during weekend road trips down Interstate 20 toward Birmingham. You can browse specific seating layouts in our current three-row luxury SUV selection.
For a broader look at how these cabin materials and technology systems enhance the driving experience, see our comprehensive 2026 Mercedes-Benz GLS design overview.

Cargo Capacity and Functional Utility
Beyond passenger comfort, this vehicle excels at utility. The cabin provides up to 84.7 cubic feet of maximum cargo capacity when properly equipped. To translate that metric into real-world use, this configuration effortlessly accommodates tents, heavy coolers, and folding chairs for an autumn tailgate at Bryant-Denny Stadium. When all seats are upright, the rear cargo area still offers 17.4 cubic feet of space for daily errands around town.
To verify detailed interior dimensions across the lineup, consult the official Mercedes-Benz interior specification sheet.
Interior Dimensions Comparison
| Dimension | Measurement |
|---|---|
| Standard Seating Capacity | 7 Passengers |
| Optional Seating Capacity | 6 Passengers |
| First Row Legroom | 40.3 inches |
| Second Row Legroom | 41.9 inches |
| Third Row Legroom | 34.6 inches |
| Maximum Cargo Capacity | Up to 84.7 cubic feet (when properly equipped) |
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