From the link-
With one jump per hour, Pastrana will attempt to recreate the concepts and exceed the execution of Knievel’s most famous moments. As Knievel jumped over 50 cars, Pastrana will attempt to jump 52. Knievel jumped 14 Greyhound buses, and Pastrana will raise that amount by two as well.
The riskiest event of the night, however, may be Pastrana’s attempt to succeed in Knievel’s jump of the fountain at Caesars Palace. This jump, Knievel never accomplished in full: in his attempt to jump over the fountain on Dec. 31, 1967, Knievel was hospitalized after crashing his bike on the jump, resulting in multiple serious fractures.