SAME Deutz-Fahr Group

The company suffered a major setback in 1972 when a massive tractor order from a South American nation was canceled. In preparation of the order, Lamborghini had made upgrades to its factories to accommodate the increase in demand. Financial complications forced Ferruccio to sell part of his share of the tractor factory to Fiat. The tractor business was eventually acquired by SAME (now Same Deutz-Fahr). Lamborghini tractors are still sold today, as part of the SAME Deutz-Fahr Group.
Eventually, the automobile division became self-sufficient and profitable. Lamborghini, however, sold all his remaining stock in the company to a Swiss investor and left the automotive industry.
Bankruptcy, Mimran, and Chrysler

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Lamborghini developed the QVX for the 1986 Group C championship season. One car was built, but lack of sponsorship caused it to miss the season. The QVX competed in only one race, the non-championship 1986 Southern Suns 500 km race at Kyalami in South Africa, driven by Tiff Needell. Despite the car finishing better than it started, sponsorship could not be found and the program was cancelled.
Lamborghini was an engine supplier in Formula One between the 1989 and 1993 Formula One seasons. It supplied engines to Larrousse, Ligier, Lotus, Minardi, and to a 'Lamborghini' team, although this last was not viewed as a works team by the car company. The 1992 Larrousse/Lamborghini was largely uncompetitive but noteworthy in its tendency to spew oil from its exhaust system. Cars following closely behind the Larrousse were commonly colored yellowish-brown by the end of the race.[citation needed]
Late in 1991, a Lamborghini Formula One motor would be used in the Konrad KM-011 Group C sports car, but the car would only last a few races before the project was canceled. The same engine, badged as a Chrysler, by Lamborghini's then parent company, was tested by McLaren towards the end of the 1993 season, with a view to its use during the 1994 season. Although driver Ayrton Senna was reportedly impressed with the engine's performance, McLaren pulled out of negotiations, choosing a Peugeot engine instead, and Chrysler ended the project.

in company resources

At the 2008 Paris Motor Show Lamborghini revealed the Estoque Concept, a four door sedan. There has been much speculation about eventual production of the Estoque.
Racing Models
See also: Modena (racing team)
Ferruccio Lamborghini had set a rule that Lamborghini would not be involved in motor racing. He saw such a program as too expensive and too demanding in company resources.[citation needed] Consequently, no Lamborghini racing car was fabricated under his management. The closest the company came to building racing cars at that time was when the company's test driver Bob Wallace made a few highly modified prototypes based on existing models. Notable among these are the Miura SV based Jota and the Jarama S based Bob Wallace Special.
Under the management of Rosetti, Lamborghini entered into an agreement with BMW to build a production racing car in sufficient quantity for homologation. However, Lamborghini was unable to fulfill its part of the agreement. The car was eventually developed in-house by the BMW Motorsport Division, and was manufactured and sold as the BMW M1.