A one-sided, mutual firing? Plus: Your midseason team grades revealed

Prime Tire Newsletter | This is The Athletic’s F1 newsletter. Sign up here to receive Prime Tire directly in your inbox twice a week during the season and weekly in the offseason.Welcome back to Prime Tire, where today I was thinking about a classic Formula 1 question: What is Red Bull going to do with its driver lineup?It comes around summer every year, and this year is no different. Except today, my thoughts are on Red Bull’s junior team, Racing Bulls.And right before I was ready to submit this newsletter, the shocking news came that Cadillac fired its team principal after just 11 races. So we’ll start there.I’m Alex, and with the F1 summer break still in full swing, it’s once again just me in your inbox.Cadillac Change: Lowdon axed as team principalThe email subject “Cadillac Formula 1®