Quote:
Originally Posted by mixja
Yes, sequential turbo setups have been around for years, although variable vane geometry or similar is probably the way manufacturers would go (I'm assuming you are thinking of a turbocharged setup that delivers torque from 1500RPM to 8000RPM  )
The other idea would be the twin charger (supercharger plus turbocharger) as seen on the VW Group 1.4TFSI engine... |
The 997 Turbo is a great example of a car that uses twin turbos with variable geometry technology to broaden its power band.
That article was full of mistakes, clearly written by someone who did some quick searches to find the weights of the M3 and RS4 and throws around terms he doesn't fully grasp like sequential turbocharging. I may be splitting hairs here but the N54 uses parallel turbocharging.
The most interesting info in there, though, was the new M coupe that sounds amazing.