John Cobb and Reid Railton with the Hudson 8 record breakers support car at Bonneville where Cobb set his last land speed record at 394 mph. Railton was a consulting engineer for Hudson.

https://hotrodenginetech.com/reid-railton-man-of-speed/
https://www.jalopyjournal.com/forum/threads/vintage-shots-from-days-gone-by.428585/page-6595