Five decades of Cascade endurance racing at PIR means you'll be competing on a well-established track with a serious crowd of club racers who know this layout inside and out. This is a proper multi-hour enduro, so bring your co-driver and pit crew if you want to maximize your chances—it's not a sprint. If you're looking to test your car's reliability and your own stamina against fellow enthusiasts on a technical circuit, this is the real deal. Full details & registration: https://www.motorsportreg.com/events/51st-annual-cascade-enduro-for-drivers-portland-intl-raceway-sports-car-266183