Burnham and Luyendyk Jr., a former driver who once competed in the Indianapolis 500, were seen Sunday walking through the race track hand-in-hand while wearing matching red racing suits.
Burnham shared a collection of photos from the date including a video of herself meeting with famed driver Mario Andretti.
"One of the top 5 coolest things I've ever done. Thanks for the rides @ariejr and @andrettimario," said alongside the post. Luyendyk Jr. posted photos from the day to his Instagram story, writing, "Great day back at the track with my fiancee! My @indycar family approves, feeling the love."
Luyendyk Jr., in a shocking twist, proposed to Burnham during the second part of "The Bachelor" finale after initially choosing Becca Kufrin during the first half of the finale.
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