( CNN ) -- Formula One is taking another step in its techno evolution this year , with major rule changes meaning that the season could be more unpredictable than it has been for a long time . Sebastian Vettel 's hopes of a fifth consecutive world drivers ' title appear very much in the balance , with his previously all-conquering Red Bull team struggling for reliability during preseason testing . However , the sign of a true champion is the ability to cope with change and innovate accordingly -- something the Austrian marque has done better than any other in recent seasons . Indeed , the 64 years of F1 history have been marked by moments of design genius which have changed the elite motorsport , at least until the next maverick idea came along . Click through the gallery above to discover some of the seminal F1 cars that broke through the barriers of conventional thinking . Which are your favorites ? Have your say in the comments box below or continue the conversation @ WorldSportCNN and on Facebook .
The 2014 Formula One season begins this weekend in Australia . Teams have been battling to get ready due to major rule changes . TL;DR His Red Bull team is seeking a fifth successive championship double .