ViaRetro did a god job covering Goodwood

https://viaretro.com/2022/09/a-glorious-goodwood-revival/

they even looked in the parking lot / car show, and found a 1952 Bristol 401, which had a drag coefficient of just 0.36

https://viaretro.com/2022/09/field-of-dreams-the-worlds-greatest-classic-car-park/