Jeremy Chubb, the Producer at Criterion Games posts on PlayStation blog:
"We're working flat out to bring you yet another free content pack for Burnout Paradise – and this one's the Bike Pack!
If you missed our recent posts, we're trying something new with downloadable content this year. We want to completely change the game we brought you back in January with regular game changing updates. That means more than just a couple of cars and a new level.
For the first time in a Burnout game, we're bringing you motorcycles. We've already talked about the 2 bikes available from Day 1 and some of the bike-specific gameplay that's on the way, but there's more to this pack than that. We're introducing night time to the streets of Paradise City and with it, some unique gameplay."