The set up used by Mike Hawthorn in practice at Le Mans in 1956 was pretty monstrous.... a mic on a steel plate strapped to his chest, camera gear in the 'passenger' side of the D-Type and a huge camera mounted on a pole at the rear of the car.
on board lap with Mikes commentary here:
https://www.snotr.com/video/18925/On..._D-type_Jaguar