ˌɔn dʒuːlˈaɪ fˈaɪv, tˈuː θˈaʊzənd ɪlˈɛvən, ɪt wʌz ɐnˈaʊnst ðætðə mˈænæt fˈæmɪli, bˈɪldɚz ænd pɹˈaɪmɚɹi ˈoʊnɚz ʌvðɪ ˈaɪəwə spˈiːdweɪ, θɹuː ðə hˈoʊldɪŋ kˈʌmpəni jˈuː.ˈɛs. mˈoʊɾɚspˌoːɹts kˌɔːɹpɚɹˈeɪʃən, hæd sˈoʊld ðɛɹ mədʒˈɔːɹᵻɾi ˈɪntɹɛst tə ðə klˈɛmənt fˈæmɪli, ˈoʊnɚz ʌv fˈɛðɚlˌaɪt ɪŋkˈoːɹpɚɹˌeɪɾᵻd.
On July 5, 2011, it was announced that the Manatt family, builders and primary owners of the Iowa Speedway, through the holding company U.S. Motorsports Corporation, had sold their majority interest to the Clement family, owners of Featherlite Incorporated.