Rapid expansion of his new Prodrive company led to a move to a new facility at Banbury, Oxfordshire in 1986. The same year, Richards' team ran a privately entered MG Metro 6R4 in the British and Irish rally championships, alongside the Porsche programme. The following year saw Prodrive begin a six-year relationship with BMW in both rallying and touring car racing. His BMW team won three consecutive British Touring Car Championships (BTCC) in 1988, 1989, and 1990, while the BMW rally teams dominated tarmac rallying across Europe winning the Belgian and French series with the Group A BMW M3 rally car.