In Version 8, the addition of the new References report to the list of available outputs simply displaces the Vehicle Data report off the list for an existing case.  To view the Vehicle Data report, you need to go back and reset and reexecute the event.  When you return to Playback, you will see that the entire list of reports is available. The results of the event have not changed between 7.10 and 8.00, and the Vehicle Data report will now be available.