As early as 1987, Mike Moreton and Ford Motorsport had been talking about a four wheel drive Sierra RS Cosworth that could make Ford competitive in the World Rally Championship.
Už v roku 1987 hovorili Mike Moreton a divízia Ford Motorsport o Sierre RS Cosworth s pohonom 4 × 4, ktorá by mohla byť konkurencieschopná na Majstrovstvách sveta v rely.