The most obvious change, visually at least, comes in the form of the nose. What is the theory behind this change and what else will we see different on the F1 W06 Hybrid? Paddy Lowe: While it has been widely quoted that regulations governing the noses of the cars have been changed with aesthetics in mind, this is actually misleading. The primary reason for the alteration has been to achieve the original height targeted by rules introduced for 2014. This was, to a greater or lesser extent, bypassed by every team last season, as the regulations were not quite tight enough. The objective behind the regulation itself is one of safety - ensuring compatibility with the range of different impacts that Formula One cars can experience. An example would be contact between the nose and a rear tyre, as we saw when Mark Webber launched into the air at Valencia a few years ago. The required nose height has been achieved by putting in place a number of additional constraints concerning the front nose sections.