Complex sentence: In 2002, Marcos Ambrose gave the Ford AU Falcon a win in the last event of its largely unsuccessful era, in what would become the first of four consecutive round wins in the Grand Finale for Ambrose.
Split into simpler sentences: In 2002, Marcos Ambrose gave the Ford AU Falcon a round win in the last event of its largely unsuccessful era. It was what would become the first of four consecutive round wins in the Grand Finale for Ambrose.