What format works best for getting a sponsor's attention when first reaching out?

A short clickable video link or sizzle reel is more effective than sending a traditional deck. Marketing directors are more likely to click on a 2-minute YouTube highlight reel showing you at the track interacting with fans and racing than to spend time reading through a multi-page deck. The deck becomes useful once you're already having a conversation, but the video link is what captures initial attention. Additionally, handwritten letters mailed to the company facility stand out because they're unique and personal in an age of digital communication.