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Singer ACS revealed: Retro Porsche 911 goes rallying – CarAdvice
US-based Porsche restoration specialist Singer has unveiled the All-Terrain Competition Study (ACS), a rally-ready version of the classic Porsche 911 inspired by…

California restoration house turns 1990 911 into rally-bred, twin-turbocharged Safari monster.
US-based Porsche restoration specialist Singer has unveiled the All-Terrain Competition Study (ACS), a rally-ready version of the classic Porsche 911 inspired by the 959 Safari and other ‘safari’ style Porsche rally cars of the 1980s.
Developed in collaboration with British Porsche 911 rally specialist Richard Tuthill, two examples of the ACS were commissioned by a long-term Singer client: one designed…
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