Complex sentence: Henri Pieper in 1899 developed the world's first petro-electric hybrid automobile in 1900, Ferdinand Porsche developed a series-hybrid using two motor-in-wheel-hub arrangements with an internal combustion generator set providing the electric power, setting two speed records.
Split into simpler sentences: Henri Pieper in 1899 developed the first petro-electric hybrid automobile in the world. In 1900, Ferdinand Porsche developed a series-hybrid using two motor-in-wheel-hub arrangements with a combustion generator set providing the electric power, setting two speed records.