Maybe it was the xfinity series I could’ve swore I saw one with a wiper
Back when Xfinity was Busch or Nationwide (or if you want to be truly old school, "Sportsman") NASCAR experimented with a rain package at the Montreal race -- teams had to bring a wiper (NASCAR would tell the teams at the track whether to put it on the car or not) and Goodyear had to bring rain tires ... initial complaints at running in the rain were teams having to figure-out defrost systems
I think a rain package is standard for all road courses now in both Cup & Sportsman, low chance of rain when Cup runs at Sonoma
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