Complex sentence: He emeged as a regular Grand Prix winner in 1984, taking his first title in 1985, and retaining his title in 1986, following a season long battle with Honda team-mate André Malherbe.
Split into simpler sentences: He emeged as a regular Grand Prix winner in 1984, and took his first world title in 1985. He retained his world title in 1986, following a season long battle with Honda team-mate André Malherbe.