The most extreme Porsche 911 in motion
January 14, 2021Singer ACR hit the gravel track
Workshop Tuthill Porsche from Worthington, England, which will build the off-road Singer ACS, has posted a video of tests of a unique coupe on the Web. Such machines may very soon be seen at major competitions like the Baja 1000 and the Dakar.
The all-wheel drive Singer ACS (All-Terrain Competition Study) is based on the Porsche 911 (964) by the American Singer Vehicle Design and the Tuthill Porsche rally workshop. The car body is entirely made of carbon fiber; the chassis is reinforced to cope with the increased loads. The suspension has eight shock absorbers (two for each wheel) with adjustable low- and high-speed compression and rebound damping, a six-cylinder “boxer” 3.6 with two turbochargers developed according to an individual project is installed at the rear.
The engine output is 456 horsepower and 570 Nm of torque. However, these figures may vary depending on the regulations of specific races. The traction “falls” on the wheels through a cam “sequential” with the ability to change gears both with a lever and paddle shifters, and three differential locks (center-to-center and two cross-axle). So far, Singer and Tuthill have built only two copies of the ACR: one for desert races, the other for high-speed asphalt sections.
