Could someone model a different train that's better than Kalphiter's Train: Box?

I would recommend using the same script (with the BPS speedometer, train horn when you click, etc...)
Maybe even adding when you press the light button it "cruise controls" your current speed.
Making a whole pack of trains would be pushing it but maybe in the future we could have from Steam Engines to Metro, etc...
I also heard a while back someone was modeling tracks, did that fail?