On Sun, 08 Jan 2012 16:55:35 +0000, Andrew
wrote:

Imps were rear-engined, rear wheel drive and had swing axles like
triumph spitfires. AFAIK At the inboard end was a rubber doughnut
arrangement to allow the angular flexing, not a CV joint as we
now know of ??.

Indeed. Istr the only ones that worked long-term were GKN - there were
others on the market, but none as good - iirc, GKN were the OEM
suppliers.