How should I share content with my sponsors after races?

Create a systematic process: after each race, upload all photos and videos to a cloud service like Dropbox. Sort them into folders - general content showing you and your vehicle, plus sponsor-specific folders. For example, if a sponsor sells cleaning products, create a folder with images of crew members using those products. Send this content to sponsors in a race recap report within 24 hours of the race ending. This gives sponsors ready-to-use content for their own channels and demonstrates the value you're providing.