The cruel Twitter posts came fast and furious Friday as Marco Andretti and Graham Rahal participated in their final practice session for the Indianapolis 500. ''Would Graham Rahal have a ride in the series if his last name wasn't Rahal?'' read one. ''You mean to tell me, that Marco Andretti is being a cry-baby on the radio?!'' read another, along with a sarcastic (hash)surprised and (hash)spoiledbrat. It's May, which means the faults and failures of Andretti and Rahal are in the spotlight at Indianapolis Motor Speedway, where their famous fathers shined. More...