BMW Tri-turbo set up

[Centered on You]

Hello All,
BMW has made a big deal about their new tri-turbo arrangement, but the suggestion of it has left at least me, scratching my head wondering exactly how they're going to employ three turbos. I found a great animation showing the exhaust and boost flow in the new three turbo set up on the M550d diesel engine. There is most likely going to be a similar set up on the next generation M3. There are rumors that one of the three turbos on the upcoming M3, will actually be electrically powered (making it a 'supercharger' by definition, I know). Still, it's pretty cool to watch.

Thanks, Jon

http://www.youtube.com/user/CenteredOnYou/videos