Complex sentence: His first appearance was the Paris-Bordeaux'City to city' race in 1899 and he competed'respectably' up until 1903 driving a Decauville automobile but without victory.
Split into simpler sentences: His first appearance was the Paris-Bordeaux'City to city' race in 1899. He competed'respectably' up until 1903 driving a Decauville automobile but without victory.