My understanding by what little I've been able to read about it, is that only the basic stereo system will be available in the US, at least at first. No premium system. anyone know if this is true? If so, it rules this one out for me.
Maybe look into adding a power amp and upgrading speakers? I like Crutchfield for that, but it will take them a little time to sort out what's doable with the car's system.