But how much of an impact does the quality of support categories have on you as a fan?
The next six weeks of track action should provide a fascinating case study, with the quantity and type of support categories widely ranging.
For example, two state level series will form the support act for Supercars at the Armor All Sydney SuperNight on November 6-7.
By contrast, the Repco Bathurst 1000 will see Supercars joined by Supercheap Auto TCR Australia, Super2/Super3, S5000, Porsche Carrera Cup, Touring Car Masters, and much more across November 30 to December 5.
More of the same has been called for by champion driver Mark Winterbottom when Supercars' new owners eventually come into power.
But we want to ask you the question: does the undercard really make a difference to your enjoyment of an event, be it from trackside or the couch?
The Speedcafe.com Motorsport Survey is designed to give fans the opportunity to have their say on all sorts of motorsport matters at a national and international level.
For more details on the survey, including the $20,000 prize pool, click here.