Toyota Should leave F1

I think that Toyota should leave F1. They just aren't getting anything accomplished from all the money that they are pumping into the team. The current rules of F1 don't really allow for them to really benefit from any R&D and trickle down technology. Toyota's big push will be vehicles that it sells to the public (like the Prius) is dual powered motors, and F1 has banned this in any of their cars. Basically this really isn't a good situation for the, and personally I would cut my losses and run. The money they save could be used in proper R&D with better results. Or split it with Marketing if they are concerned about the "brand".