Criterion's shown the first footage of Burnout Paradise motorbikes in its Crash TV podcast and, fair play, it looks awesome. Here's an iTunes link.
There's a heap of information there on Cagney, the first major update for the game, due to release on July 10. Bikes will be included in Davis, the August update, as will custom soundtracks and day-cycles. All of this is shown in the video, so watch it now.