Complex sentence: The first car produced by this relationship, the Sauber C8 was not particularly successfuland, however the successor C9 won several races, including 24 Hours of Le Mans in 1989.
Split into simpler sentences: The first car produced by this relationship, the Sauber C8 was not particularly successful. However the successor, the C9 won several races, including 24 Hours of Le Mans in 1989.