The bespoke Mark Levinson Reference Surround Sound System (Optional) is one of the finest in-car entertainment systems. Lexus and Mark Levinson spent over 4000 hours optimizing the system for the acoustic characteristics of the cabin. Key to its superlative 750 watts (max) performance are 19 speakers, each one acoustically engineered for its specific location. Together with a central 8-inch touch-screen display, the system also offers a home theater experience, with in-dash DVD player, and a USB/mini-jack for connecting media players. In addition, the system’s hard disk drive functions as a music library, letting you save your favorite CDs.