Offered here is the sixth production Sierra Cosworth which was the sole transport of co-founder Mike Costin for many years. Most appropriately, it has resided in the reception area of Cosworth for nearly fifteen years. It has covered only 63,500 miles, is completely standard and even retains an original mild steel exhaust. Naturally, this is a very significant Sierra RS Cosworth and comes with all previous logbooks types endorsing the ownership and a letter of authenticity from Cosworth