This helped a little, I found someone on flickr that has taken their RX10M3 (similar to M4 but with worse autofocus) to Le Mans and took a ton of pictures:
https://flickr.com/photos/128521861@N05/albums
Look, glowing brakes!
https://flickr.com/photos/128521861@...7648228407489/
LARBRE COMPETITON LM P2 Ligier JSP217 Moteur Gibson V8 4200cc by Studio Miglia, on Flickr