Out of your list only Opel really qualifies as an "autmotive entrepreneur". It may have been left off the list because it has been owned by General Motors since

Out of your list only Opel really qualifies as an "autmotive entrepreneur". It may have been left off the list because it has been owned by General Motors since the 20's. Companies like Peugeot, Renault, and Fiat produce a very wide array of non-automotive products. MAN Group was founded in the 1700s and while "truck building activities" commenced in 1903 it was hardly the lion's share of their business.