The 2008 Ford Super Duty has optional power telescoping/power-fold trailer tow mirrors that are integrated into the seat/steering wheel memory system with heated glass, integrated turn signals and a manually-adjustable spotter mirror, twice the size of the previous version. A high-strength steel Tailgate Step, tested up to 1,000 lbs., is integrated into the bed and pulls out and down to give easy access to the rear, while a grab handle extends from its fold-flush position in the tailgate to steady climbing. A creative stowable bed extender separates and folds flat out of the way, when not in use. Also new is a supplemental heating system, Rapid Heat, bringing additional heating to diesel customers for a quicker warm-up in the cold.