I see speculation about which real life locomotive the freight train's been based on, but no such speculation for the passenger train? Sad Melfice.
In my eye, the passenger train seems to be loosely based on the Bombadier Talbot Talent, except LEGO made it an EMU instead of a DMU.
I've never been a big LEGO train fan, but these new sets make me a bit giddy inside. I might actually crack, and buy a set, or two (Financial status permitting).