Trivia: Roy's racecar in the photos of him on the bar at the end is the same car that causes the crash in FD4 - you can see it in the end credits rerun of prior film scenes.
Suggested correction: While it is the same vehicle from the previous film, it is not Roy's racecar. He is a plant worker and merely posing with the same car as a fan.
Which would still make it a trivia connection.