Mercedes' hydraulic suspension system has gained further attention recently, with sections of the German motorsport press suggesting Formula 1's technical working group will discuss the high mounting of the heave unit on the W07's chassis.
It was, in fact, Renault that pioneered the reintroduction of hydraulic linked suspension a few seasons back, which led Mercedes to adopt the system and the term FRIC (front and rear inter-connected) being applied to such solutions.
FRIC was banned ahead of the German Grand Prix in July 2014, but rather than dispense with hydraulics linking the suspension front to rear, teams instead linked each end of the suspension to spring units mounted in the sidepod.