This is another in an ongoing series of our #PrimalNumbers project. Read more about the project and see our others here.

Testing №66 at the 2018 Indianapolis 500 (photo: IMS Media)

№66 is one of the most storied numbers in all of motorsports.

When it came time for Dreyer & Reinbold Racing and me to sort out our car for the 2018 Indianapolis 500, there was little doubt in my mind that I wanted the №66. I was pretty excited when Dennis Reinbold asked if I had a number preference — it’s not always something the driver gets much input on.

In IndyCar there aren’t any restricted numbers besides the ‘1’ and whichever numbers are already in use for the 500, so I immediately asked whether №66 was available and we locked it in when we found out it was.

I originally became enamored with №66 seeing it grace Jim Hall’s beautiful and innovative Chaparrals. I loved the cars but also the elegance and simplicity of the styled №66 over that creamy white paint.

№66 is also special to me because it was used by the one and only Mark Donohue, especially at Indianapolis. Though I never saw him drive, his legacy through all the epic cars, the vastness of his success, and not least of which The Unfair Advantage made him a driver I admired from a very young age.