The new Infiniti M56 is a masterpiece of style, both inside and out. The great curves over the front wheels give way to an opulent cabin with wonderful leather and wood in a spacious, airy package. This Infiniti interior is essentially my definition of luxury. I find the controls easy to use, but it seems that by now the rotary controller should be located on the center console, not a full arm's length away perched atop the center stack.