They're the three letters that have come to dominate sportscar racing in the past decade. But in the time before BOP (or Balance of Performance), the mechanism used by governing bodies the world over to incentivise participation by as many manufacturers as possible, there were no leg-ups for smaller manufacturers looking to take on the might of Porsche and Ferrari.
That's not to say that the minnows didn't have their day on occasion. Blackpool manufacturer TVR experienced fleeting success in the Le Mans Series in 2005, while Panoz caused a major upset by winning the GT2 class at the Le Mans 24 Hours in 2006.
But the Spyker marque that was a stalwart of GT2 competition in the 2000s until 2010 with its family of C8 cars - when financial woes turned an intended sabbatical to develop its new C8 Aileron model into something more permanent - never managed an outright win in ACO-approved competition.