There are a couple glitches with the new replay system:
1: If your playing a recording, you pause it, and right click - play: it glitches and leaves the bike there on the screen, plus brings up a new bike which is connected to it. It's hard to explain, so I took a screenshot.
2: When you pause a recording, and right click - rewind: The background goes completely gray
These might not be the number 1 issues that need to be fixed though =P Just pointing it out
Screenshot: http://img155.imagesh ack.us/img155/2365/glitchzo9.png