Financial troubles forced De Tomaso to look for a business partner whom he found in the American Bruce Qvale, an importer and distributor of a number of exclusive cars in the United States. The De Tomaso Biguà was renamed the Mangusta, a historic name (see De Tomaso Mangusta).
As the first cars were about to be delivered, Qvale and De Tomaso parted ways. Qvale took over the factory and the car's production. De Tomaso, however, refused to allow the use of his name. The first Mangustas were delivered to their customers with De Tomaso badges, which subsequently had to be exchanged at the dealers for the now-official Qvale logos.
Between 2000 and 2002, Qvale built 284 cars, the majority of which were exported to the USA. The lack of a well-known brand name, the slowing economy, and the unusual design made marketing the car difficult. In 2003, Qvale sold the rights to the Mangusta to Britain's MG Rover Group.
In 2004, MG launched the MG SV and SVR. Designed by MGSR (MG Sport & Racing, the racing division of the MG Rover Group), the SV was based on the structure, suspension, engine and gearbox of the Mangusta. The car was built largely in Italy, with some fitting and pre-delivery customisation in the UK.