Complex sentence: In 1963, McEwen achieved his greatest success at the time when he posted a runner-up finish against Art Malone at the Bakersfield March Meet in California in the Broussard-Garrison-Purcell-Davis car.
Split into simpler sentences: In 1963, McEwen achieved his greatest success at the time when he posted a runner-up finish against Art Malone at the Bakersfield March Meet in California. He was driving the Broussard-Garrison-Purcell-Davis car.