BMW Sauber F1.07 - bib stay 04 April 2007
The system adopted by BMW is similar in its basic concept to the one used by Ferrari. The supporting device (red arrow) between the bib (the front section of floor under the splitter) and the splitter endows the portion of floor closer to the ground with a certain degree of movement - enough to prevent damage to the floor over kerbs, but not enough to fail the mandatory floor deflection test. The question being asked in Melbourne was could such devices be used to circumvent the regulations and allow greater movement at speed. From round two in Malaysia such devices must be removed before the car undergoes the floor deflection test.