Complex sentence: He is a former car rally champion who owns the private rally team Cyclon Rally Sport, with seven participations (from 1986 to 1992) in the international Acropolis Rally he was first Greek driver in Acropolis Rally for five years from 1988 to 1992.
Split into simpler sentences: He is a former car rally champion who owns the private rally team Cyclon Rally Sport, with seven participations (from 1986 to 1992) in the international Acropolis Rally. He was the first Greek driver in Acropolis Rally for five years from 1988 to 1992.