If you are an Audi fan and don't think tweeting is a good use of your valuable time, you may want to reconsider.  Audi is making tweeting very worthwhile for enthusiasts longing to get into an Audi R8. So, if you aren't a twitter fan, you may want to reconsider, because all you need to do is tell the automaker in 140 characters or less why they should grant you your wish to?