This may be a stupid question, but here goes. My wife wanted to check out what it's like at Monza in the Formula A using the Oculus Rift, but she's not much for the actual driving. So, I threw together a 5 lap race and actually had a really fun race with lots of dicing around with the AI cars. Then I went to show her the replay of it.
None of the AI cars moved. I launched off the line and they all stayed there for all five laps. My car just drove straight through all of them.
Am I missing some setting that includes the other cars in replays?