Centaur Cars were built by Richard Scott, who ran Centaur Engineering, originally based in Halesworth, Suffolk, and later in Sheffield. The Mk 1 appeared in 1962 and many cars were built in the ensuing years, mainly for F750/F1200/F1300/Clubmans formulae. There was also a F3 car (the Mk 2), a couple of FFs and even a Spedeworth Midget racer, which was claimed (in 1973) to have been the most successful Centaur ever, having achieved numerous wins in the hands of Mick Miller. Later Centaurs (Mk 12 onward) were usually a collaborative design by Richard Scott and David Childs. Other projects included the Apogee for Richard de la Rue and a kart (which had identical wheelbase and track dimensions) for Scott's local butcher.
(Source: article by Jeff Ward on Centaur in the Oct 1973 edition of the 750MC bulletin.)
If Eeyore's friend hasn't already contacted them, the 750MC might be able to help. Here's a discussion on Centaurs on their forum:
http://www.750formul....php?f=15&t=616
Edited by Tim Murray, 31 January 2016 - 13:09.