BMW has announced the availability of Real Time Traffic Information (RTTI) on its navigation system fitted to cars sold in the US. BMW sys that this new premium service feature will offer timely traffic information and, for the first time on any production vehicle sold in the United States, dynamic rerouting on navigation systems in select 2007 BMW models, i.e. the X5, M5, M6, and the 3, 5, and 6 Series models.