In the long arc of motorsport preservation, rules written to protect the past can quietly become walls against the future. Motorsport Australia's Historic Motorsport Committee has recognised this tension, approving an expansion of Historic Group N Touring Cars to include vehicles built through 1984 — the first meaningful regulatory shift in over thirty years for Australia's oldest racing classes. The decision, effective January 2027, attempts to widen the door of eligibility without dismantling the house that existing competitors have built their identities around.