 In 2015, the former Trentham plant was sold to Weta Digital, while existing space is used by the New Zealand Army.General Motors New Zealand assembled and imported GM products from Chevrolet, Buick, Oldsmobile, and Pontiac from the United States; Holden from Australia; Isuzu from Japan; Opel from Germany; and Vauxhall and Bedford from the United Kingdom.However, for such a small market, it made little sense to have so many brands, so each was rationalized from the 1960s.