ACs are manufactured by two companies:
There's the German built AC Mk VI with the LS3 Corvette engine - carbonfibre body, garish interior, wrong shape - an AC in name only:
http://http://www.accars.de/
and the traditional aluminium 'Continuation' cars built by AC Heritage at Brooklands, England:
http://www.acheritage.co.uk/newbuildcobra427.html