On a September 26, 2019 Instagram post Clairo wrote:

RACECAR is out now ❤️. OKAAAAAAY i’ll try to keep this short, but this song means a lot to me. around this time last year I flew to LA to start writing the next “EP” (which would later become Immunity). at the same time, i was going through the worst joint pain i’d ever had in my life. my arthritis was at it’s peak and I could barely walk around the house. I remember having to cancel most sessions because of it- but working with Deaton was something I had wanted to do for so long so i randomly decided to go. I remember showing up & having to use his arm as leverage to walk anywhere, unable to open doors.. it was bad. when we finally sat down to make the song, I became super emotional and started talking about how arthritis made me feel. how it made me feel weak and undesirable and insecure and how i felt like i could never be confident again….. a REALLY rough way to start a session lol 😭 but Deaton proposed the idea of taking on a character- making a rap song that comes from the opposite end of me at the time: someone who is confident, secure & tough (mind you, this is probably the only song where you will ever hear me rap… it was for a good cause). making this fun, loud, confident song the same day i dealt with something so disheartening showed me what music can do for me, and how it doesn’t always have to be so serious to make you feel something. this was one of the most important days of my life- not only because of the music but the amazing fucking friendship i got out of it!!!! i love you @deatonchrisanthony @cococlairclair i can’t believe this song took a year LOL

Later, in the description of the video clip for the song released via YouTube on October 4, 2019, Deaton Chris Anthony wrote:

1 Year ago on this Exact day Sep 26th 2018 Claire and I hung out for the first time and decided to make a song for fun. It was a very emotional day and very vulnerable. I remembered that we were making a song quite meloncholly and the thought hit me, Claire can rap. So I asked I said Claire we need to do something else, you should rap…. She said Im not going to rap and I said Yes lets do it let’s be whoever we want to be. So as I made a beat I’ve never seen someone write lyrics so fast. it came to her like lightning. And the rest of the day was the funnest time making music I have ever had. And we listened to it and were shocked, we went home and texted about how we cant stop listening to it. Fast forward 1 year later that has not changed. I listen to what we made and It still feels like The first time. Claire And I waited and waited and waited for the right time to release this. Coco and Clair Clair came on out of no where and the song went to the moon. This occurred to me This is their time. This is about the girls. I wanna be like them!!!! The way they turn up and have fun is the best and So we did that. We put our heads together for months and months and Made sure this song meant something to us. And it is now Sep 26th 2019 1 year from that exact day and The song means everything to me. RACECAR is my diary of memories Claire and I have had so much fun with. I hope you Love RACECAR, This is our music Have a great day PS; These videos are some of how RACECAR was made 🏎🏎🏎🏎🏎🏎🏎🏎🏎🏎🏎🏎 – DCA