some stuff is not really new but added anyways for cool factor.
How the turbo Anti-Lag System works
http://www.rallycars.com/Cars/bangbang.html
http://www.autofieldguide.com/articles/050103.html
variable nozzle turbocharger (VNT) to the downsized powerplant. By varying inlet geometry, VNT turbos can increase boost at low engine speeds, and match it to demand without overspeeding the turbine at high exhaust flow levels.
twin-scroll exhaust nozzle. In a single-scroll design, exhaust gasses are combined and fed into the turbo. As engine speed rises, back pressure increases, and exhaust gasses are drawn into the combustion chamber where they mix with the intake charge. In a twin-scroll design, however, cylinders are paired, and their exhaust released into a dedicated entry.
air bearings
Air, the lubricating medium, is forced into a reservoir surrounding the bearing. Here it passes through precisely metered holes into a narrow gap between the bearing bore and shaft, and this air curtain separates and cools the two surfaces. With an air bearing, frictional drag is lessened, bearing life increased, and higher shaft speeds are possible.
Electric drive
As if this wasn’t enough, Garrett has one final trick up its sleeve: electrically assisted turbochargers. An ultra-high speed electric motor/generator drives the turbocharger to provide boost at engine speeds where adequate exhaust flow is unavailable or unequal to the demand. “This means an electrically driven unit can provide boost from a cold start, just off idle, or in transient response conditions, making boost totally independent of engine speed,” says Gillette. “Plus you can use the electric motor to eliminate the need for a separate wastegate, eliminate throttle lag, and take advantage of an air bearing’s lower friction by using a smaller motor/generator unit.”
Another benefit of electric drive, Garrett claims, is that excess energy can be redirected to the generator side of the system to provide electrical power. “We can use this to provide a source of extremely high voltage for hybrid electric vehicles,” says Panella, “or use it as a supplemental 42-volt power source. That’s the beauty of ‘air on demand’.”
