Castrol was only assisted by one of their ground crew.., and this is allowed in the rules. More than one is not allowed until after they cross the line.
These are special rules for the event (and the same for the Worrell 1000, I might add)

So, it was completely legit.

And I do have the Photo Album up and running for the last leg. Enjoy!

But, I have to say that was probably the most exciting finish I have ever witnessed. I was just breathing a sigh and beginning to relax as I looked at my watch while Castrol was approaching and thought to myself, "OK, Castrols will win it."
Then I started shooting and couldn't believe they punched it in just before the finish. Incredible.

That was quite a show, ya'll

Rick