I went from the LS430 to the LS460L and am really dissapointed in quite a few technology (or lack there of) issues with the car. the biggest is that there are no hidden buttons to enable the nave while moving like in the LS430. When My wife had a NAV put in her SEQUOIA by the same MFG as the Lexus unit, the simple did something with the brake grounding wire and you can use the unit anytime you want without needing hidden buttons.