These 2 cars were discovered in a lake in Oklahoma after missing for over 40 years. 3 teens inside the 69 camaro and 3 people in the chevy sedan. The cars were discovered feet apart but the article says police don't think the accidents are related.
https://www.google.com/amp/s/oklahoman.com/article/5359193/bodies-found-in-foss-lake-identified-cause-of-death-determined-oklahoma-authorities-say/amp