Newly restyled for model year 2010 , the GL350 BlueTEC features a sporty front grille and bumpers with chrome-ringed fog lights , redesigned stainless steel skid plates with trapezoidal exhaust pipes , and 20-inch five-twin-spoke alloy wheels with all-season run-flat tires . The GL 's second and third-row seats can be easily stowed to provide a flat cargo space that totals 83 cubic feet of cargo room .