I did some digging. It seems that it's the logo of a newly formed company, 9/18, called Sustainable Quarry based in Dallas Tx. https://www.sustainableq.io/ They are a green energy cryptocurrency mining company. I have no idea what that means. I know nothing about cryptocurrency. I guess I should look into that.  But it's really expensive to be the only sponsor on a Cup car even just for one race. It's hard to believe that a company that isn't even 3 months old can afford that.  The Co-founders are NASCAR enthusiasts so it's quite possible. They also have a FB page with 2 followers.    I can't help but question whether it's plausible deniability or just a silly coincidence. What do you think?    Update: This is the results of my digging.   WHY DID REED SORENSON RUN A #7 Q CAR AT TEXAS MOTOR SPEEDWAY ON NOVEMBER 4, 2018