Complex sentence: The V64V engine chosen had a short but successful career as a purpose-designed racing car engine, it was designed by Cosworth engine designer David Wood for Austin Rover Group's Metro derived Group B rally car, the MG Metro 6R4.
Split into simpler sentences: The V64V engine chosen had a short but successful career as a purpose-designed racing car engine. It was designed by Cosworth engine designer David Wood for Austin Rover Group's Metro derived Group B rally car, the MG Metro 6R4.