Complex sentence: Deliveries of the Prius Plug-in in the United States are scheduled to begin the second quarter of 2012, but the plug-in will be initially available only in 14 states with a national rollout planned for 2013.
Split into simpler sentences: Deliveries of the Prius Plug-in in the United States are scheduled to begin the second quarter of 2012. The plug-in will be initially available only in 14 states and the national rollout is planned for 2013.