Hailee Steinfeld's big brother, Griffin Steinfeld, is a NASCAR driver and is passionate about his job. Griffin often posts photos and clips of his experiences as a race car driver and mechanic on social media. On November 14, he shared a picture of himself on Instagram posing with his Chevrolet Chevelle, writing, "Catch me with a big THUMBS UP now that the chevelle is ready to race!!!" Griffin later reposted an image that was taken of him next to his twin turbo Malibu while he was at the Las Vegas Street Car Super Nationals 18 that had previously been shared by Precision Turbo & Engine on November 23. He is also a dog dad and loves posting cute pictures of his fur baby, Dwight.

The public figure occasionally uploads videos on his YouTube channel documenting his life as a race car driver. He offered a video recap of his participation in the LS Fest West in May 2022, as well as another in June of himself doing off-road jumps with friends during the event. Furthermore, Griffin and Hailee have been able to collaborate professionally. As reported by Drag Illustrated, Griffin served as a stunt driver for "Bumblebee," the action film that Hailee starred in back in 2018. The two have also made sure to maintain a tight bond in their personal lives. 

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