The company went on to develop and produce both sports cars and luxury vehicles, most notably the Ford-powered Italian-bodied Mangusta and Pantera grand tourers. From 1976 to 1993 De Tomaso owned Italian sports car maker Maserati, and was responsible for producing cars including the Biturbo, the Kyalami, Quattroporte III, Karif and the Chrysler TC. De Tomaso also owned motorcycle company Moto Guzzi from 1973 to 1993.
De Tomaso went into liquidation in 2004, although production of new cars continued after this date. By 2008 a buyer was being sought for the De Tomaso factory and trademarks, per the court-appointed liquidators. In 2009 Gian Mario Rossignolo bought the De Tomaso trademark and founded a new company named "De Tomaso Automobili SpA". Rossignolo planned to assemble chassis and bodies in one of Delphi Automotive's old production facilities in Livorno and to fit bodywork, paint and finish its cars in the former Pininfarina factory in Grugliasco.
In May 2012, De Tomaso was again for sale after their business plan failed to gather sufficient financial backing. In July 2012, Rossignolo was arrested following allegations that he misused €7,500,000 worth of government funds. In September 2012, speculation emerged that BMW might be interested in the brand factory to produce new BMW models.