Complex sentence: Thorne purchased the entry of the first alternate, and planned to buy the qualified car of Cliff Bergere, and planned to withdraw both in order to elevate his own car (the second alternate) into the starting field.
Split into simpler sentences: Thorne purchased the entry of the first alternate, and planned to buy the qualified car of Cliff Bergere. He then planned to withdraw both of those cars in order to elevate his own car (the second alternate) into the starting field.