Since founding Roush Racing in 1988, the man known as “The Cat in the Hat” turned his vision into a full-blown dynasty. With more than 300 NASCAR victories and eight championships across the Cup, Xfinity, and Truck Series, Jack Roush made a career out of blending engineering smarts with a sharp eye for talent. Drivers like Mark Martin, Matt Kenseth, and Carl Edwards all owe huge chunks of their success to his program. But behind all the trophies and milestones lies a pivotal moment where Roush’s influence stretched beyond his own team and quietly changed the entire Cup Series forever.

Today, NASCAR teams are capped at four full-time Cup Series entries, a rule that seems so standard now that most fans barely think about it. But this wasn’t always the case. In fact, the four-car limit tra

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