Name of this demo?

[Piru]

I'm looking for the name of an Amiga demo which was made somewhere around 1992-1994 and it featured a techno-ish music with a Bugs Bunny sample (What's up doc?). I can't remember how it looked at the beginning, but near the end you would see a rollercoaster 3D pipe effect.

Switchback by Rebels
Probably this is not the one you're looking for (no bugs bunny -sample, although the music kicks some behind). It has the ultimate rollercoaster anim part with cool Prodigy module, however.

[Piru]

I remember a cool demo by Sanity called Art or Art´e. It has pretty decent jazz/funk sound-track for and cool gfx for a none AGA demo. At some point you are transported thru colourful hoola-hoop-like rings.

It's Arte (from the TV-channel name). See Sanity Arte (video).

Excellent demo, one of the true classics.