Singer Vehicle Design All-Terrain Competition Study (ACS) History
Catalog record
This is a brief catalog introduction with limited source documentation. A licensed, identity-checked lead photograph has not yet been added for this page. Detailed year, configuration and ownership coverage must be identified separately; this page is not a complete vehicle catalog.
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Unveiled in January 2021, the All-Terrain Competition Study (ACS) was developed in collaboration with Tuthill Porsche, a UK firm renowned for building Porsche 911s for the Safari Rally and other off-road endurance events. The ACS combined the Classic Study's bespoke coachbuilt approach with a lifted ride height, strengthened suspension, underbody protection, and all-terrain tyres.
Power came from a twin-turbocharged 3.6-litre flat-six developing around 450 hp, and pricing was quoted above $1 million USD — reflecting the bespoke, motorsport-grade build. The programme attracted significant enthusiast attention but was removed from Singer's website in March 2021 following objections from Porsche AG over the marketing presentation; it is catalogued here as a 2021 programme rather than an ongoing offering.
Body styles
- Coupe
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