Complex sentence: He took the championship in 1954,1956, and 1957, he also drove a beautiful Hudson Hornet, that was said to be "the fastest car around", which he drove to his 1954 championship, along with longtime friend Tim Flock.
Split into simpler sentences: He took the championship in 1954,1956, and 1957. He was noted for driving a Hudson Hornet, which he drove to his 1954 championship, along with longtime friend Tim Flock.