I am not sure if this is in the works or if someone has already thought of this but here goes.  They should release weekly contests where they let you download a Rare created challenge and you have to design a vehicle to do the challenge the best.  The top 10 gamers win a prize or something.  Seems like it would provide some lasting value and also bring out some creativity.  Videos of the winner's game will be available for download.  Thoughts?

Hey, that actually sounds like fun and I might actually enjoy doing that! xD

Great idea for a Rare giveaway, with the prize as Banjo XBLA.

If they do what they did with GeoWars 2, where they show who is the next best score on your Friends list, that will be great too.