How do I model and animate a roller coaster?

Here’s one of my older attempts http://media.putfile.com/R2-48 . I want to make one much more realistic.

Try this tutorial:
http://membres.lycos.fr/bobois/Tuts/Courbes/completeRC/foreword_en.html
I used to know where to find a better one, but I can’t remember where it was… I always seem to forget these things at the worst times!:smiley: