Well, as the Red Bull racing was mentioned ... is the fairly built-up area around Ascot racecourse an ideal environment to be zooming around at high speed with 90º AOB at not-a-lot-of-feet? I hope [and indeed pray] that everything happens over the Golf Course to the NE, but somehow I doubt it - otherwise the crowds won't see much..
Doesn't that beg for a repeat of Shoreham, or indeed many other crowd-related incidents. And in this case, there's a swathe of residential properties bordering the racecourse.
(Google Maps screenshot refusing to upload ... sorry)