The 3.5T Supercharger adds a 48V mild-hybrid system with a battery-driven e-Supercharger to increase the outputs to 409 hp and 405 lb-ft, and adds to this 21-inch alloy wheels, adaptive air suspension, rear-axle steering, power-adjustable, ventilated, and massaging rear seats with a memory feature, soft-close power doors, a rear-seat wireless charging pad, and an upgraded 23-speaker Bang & Olufsen audio system.