a few years ago iirc bing had a miki biasion group a sierra 4dr shell.
i know of a few that went to ireland,one was owned by welsh area
rally spares, they used to buy loads of ex works cars/spares out of boreham.
i saw it rally as a works car with miki and with the brothers who owned welsh area rally spares,my mates fiesta cosworth kept up with it on straights,but on corners etc it got left way behind by the sierra.
that car was £35 grand just out of boreham.
it went to derek mcgarrity who has probably had more top spec wrc
cars than i have had hot dinners