Various views were expressed by NASCAR and others about the cause or causes of Dale Earnhardt's death, causing controversy but also leading to subsequent improvements in safety. Factors in the controversy included:
* NASCAR's initial claim of seat belt failure (which led to speculation as to whether this might have been caused by deliberate incorrect fitting to aid driver comfort);
* Whether Dale Earnhardt's continued use of an open-faced helmet was a factor.
* Controversy over access to the autopsy records.
* The different findings of an independent report, which said that whether the seat belt failed or not was irrelevant, as death had been caused by neck injuries which could have been prevented by a HANS device.
* NASCAR's own report, which did not concur with the independent report, but rather lay blame across a range of causes.
Main article: Dale Earnhardt: Autopsy photographs controversy
In the midst of the general controversy, legal, political and public opinion were all engaged in ways that changed Florida's laws as to how and under what circumstances public record medical examiner files, including autopsy photographs, would be released to members of the public.