At first I thought transferring from an Escalade to a 550 would be dumb, but i am wrong. The fold flat third row is a charm and it handles way better. Way more roomy third row. The only thing I miss is the heated and cooled cup holders.
Navigation and interior design.
Adaptive Headlights and Night vision. Front, Side, and Rear parking sensors. Refrigerator option. Heated, Cooled, And massaging first and second row seats. Fixed 2nd row center consul. Heated and cooled cup holders. Pannera sunroof.