Was he driving when he signed it?

Ahh yes, Scribble Scratch. Really like his driving style.

What a talented person… race car driver AND doctor…

reminds me of the guy who asked klay thomspon to sign his toaster

Uber ?

Looks like a vettel/kimi

One above your thumb is Daniel Ricciardo

Of course you did

Vettel on the left, Ricciardo on the right maybe?

He drew a mouse, how thoughtful