Complex sentence: During his career, he raced for two teams, Mercedes-Benz and Alfa Romeo, winning the the 1947 Italian Grand Prix and the 1948 Swiss Grand Prix.trossi held the La Turbie record before Rene Dreyfus reclaimed it in 1934.
Split into simpler sentences: During his career, he raced for two teams, Mercedes-Benz and Alfa Romeo, winning the the 1947 Italian Grand Prix and the 1948 Swiss Grand Prix. Trossi held the La Turbie record before Rene Dreyfus reclaimed it in 1934.