Complex sentence: In 1994 and 1995, Gugelmin raced in the Indianapolis 500, with his best result in the 1995 race where he started and finished in 6th position, leading 59 laps.
Split into simpler sentences: In 1994 and 1995, Gugelmin raced in the Indianapolis 500. He started and finished the 1995 race in 6th position, leading 59 laps.