Heinz C. Prechter: the Sunroof King, and the Research Programme His Death Created

Heinz Prechter arrived in the United States from Germany as a young man with almost nothing, built a global automotive supplier from a single idea, advised presidents, and was one of the most respected businessmen in Michigan.

For roughly thirty years he also had bipolar disorder, and almost nobody knew. He died by suicide in 2001. What his family did afterwards has probably helped more people with the illness than anything he did in business.

From Germany to Michigan

Prechter was born in Germany in 1942 and trained as a coachbuilder. He came to the United States in the 1960s on an exchange programme with, by the standard telling, a few hundred dollars and a set of tools.

He noticed that American cars did not have sunroofs and that European ones did. He began installing them himself in California, and founded what became the American Sunroof Corporation.

ASC grew into a major automotive supplier with operations across several countries, doing specialty vehicle design and manufacturing for the major carmakers. Prechter became a significant figure in Michigan business and politics, a substantial philanthropist, and an adviser to Republican administrations.

Thirty Years of Concealment

Prechter was diagnosed with bipolar disorder as a young man and, by his family's later account, kept it hidden from nearly everyone for the rest of his life.

His wife Waltraud has spoken about the difficulty of those decades: the episodes managed privately, the treatment sought quietly and at a distance, and the constant calculation about who could be told. He believed — with considerable justification for the era — that disclosure would destroy his standing, his business relationships and his ability to raise capital.

That concealment is the centre of his story and the reason we think his page matters. The energy required to hide a serious mental illness for thirty years while running an international company is itself a significant burden, and it is one that a great many people carry. Concealment also directly impairs treatment: it limits who can notice warning signs, makes consistent care harder to maintain, and isolates the person precisely when isolation is most dangerous.

He died on 6 July 2001, aged fifty-nine.

If you're struggling, please tell someone. A doctor, a mental health professional, or a crisis line in your country — and emergency services if you're in immediate danger.

What His Family Did Next

Waltraud Prechter made a decision that changed her family's story: she chose to say publicly what her husband had died of, and why.

In 2001 the family established what became the Heinz C. Prechter Bipolar Research Program at the University of Michigan — now one of the most significant bipolar research efforts in the world. Its centrepiece is a longitudinal cohort study following a large group of people with bipolar disorder over many years, gathering genetic, biological and clinical data to try to answer questions that cross-sectional research cannot: why the illness takes such different courses in different people, what predicts an episode, and why individuals respond so differently to the same medication.

That is precisely the kind of slow, expensive, unglamorous work that rarely gets funded and that the field most needs.

The family have also been consistently public about the concealment itself, arguing that the stigma which kept Heinz silent for thirty years was as damaging as the illness.

Why He Belongs Here

Prechter is the least famous person on this website, and in one sense the most representative.

He is not a case of illness fuelling genius. He is a highly capable man who did serious work while managing a serious condition in secret, because the environment he operated in gave him every reason to believe that honesty would cost him everything. That is the situation most people with bipolar disorder are actually in — not on a stage, not in a biography, just at work, deciding what to say.

He also stands as a rebuttal to the idea that success is protective. Prechter had money, status, access to the best care available, a supportive wife, and the ear of presidents. None of it was enough on its own, because the one thing he did not have was the ability to be open about it.

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