According to an article recently posted by James Allen (http://www.jamesallenonf1.com/2012/01/has-lotus-renault-found-this-years-must-have-gizmo/), it appears that Lotus have come up with an arrangement of hydraulic cylinders positioned inside the brake cooling areas, which will be driver operated to alter dynamically the ride height of the cars during braking and accelerating, thereby eliminating any dive or squat effects. Apparently this was discovered by Giorgio Piola during this year’s Abu Dhabi Young Drivers Test.
Although to me this sounds like an utter violation of the 3.15 section of the technical rules regarding moveable aerodynamic devices, a lot of people seem to confuse this with the inertia fluid damper, as was explained by ScarbsF1 in his excellent blog (http://scarbsf1.wordpress.com/2011/11/29/lotus-renault-gp-fluid-inerter/). I have to stress that these 2 arrangements have nothing to do with each other. ScarbsF1′s damper, is basically a mass damper which uses fluid instead to counteract for secondary vibrations and spring effects coming from the high-profile tyres and the suspension itself. It’s a passive system, linked directly to the suspension, and it has been running on many cars (as a mass damper) for many years. It’s also legal, although the fluid solution is apparently patented by Lotus Renault. On the contrary, Giorgio Piola’s discovery refers to a driver operated device which will alter the aerodynamic profile of the car, real-time.
I can’t for the life of me comprehend how something like that can ever be allowed.