Beyond the battery pack, Mercedes turned to bio-based composites for multiple parts in the EQXX including:
• Seating material produced from an "animal-free leather alternative" called Deserttex produced from cactus fibers combined with a bio-based polyurethane. Future development for Deserttex could mean its ecological footprint is half that of conventional leather alternatives.
• The doors are made from a hybrid of carbon-fiber-reinforced plastic and glass-fiber-reinforced plastics with aluminum reinforcements. In addition, a new nylon foam is used to reinforce the lower edge of the door and optimize energy absorption during a side crash.
• Advanced glass-fiber-reinforced plastic springs, developed in partnership with Rheinmetall Automotive, offer lighter weight than conventional coil springs.
• The rear floor uses recycled plastics from development partner UBQ Materials to keep out water and dirt while still reducing weight. UBQ uses mixed plastics and other materials that could go to landfills. Mercedes said while it is only using the plastic in prototypes, it "offers very strong potential" for full production soon.
The Vision EQXX features a thermal-management system that helps limit energy loss. A combination of aero shutters, coolant valves and water pumps ensures the electric drivetrain maintains an ideal temperature.
A cooling plate installed in the vehicle floor takes advantage of the air flowing along the underside and helps the Vision EQXX squeeze an additional 12 miles of range.
Efficiency improvements are not limited to the drivetrain. "Ultra-thin" solar roof panels help deliver up to 16 miles of additional range.