When you say you "cannot get the car mode to work", what exactly do you mean ? It seems to be working okay for me - There isn't much to it really ( unless I am missing something ) - you hit the hardware zoom button to get in, and hit it again to get out . Once you are in there, there is not much you can do except pause, skip forward, and skip backwards.

Would it be good idea to automatically flip to car mode after a certain period of inactivity, and then have a software way to go back ?

Also I am noticing that whenever i expand an album in the browser, the tracks in it are automatically played next. Is this on purpose , or a bug ?