The 2013 gets you a little extra battery capacity, the hold button and in California the H.O.V. privileges. The hold button allows you to choose battery or gasoline operation. I really like it. So far my driving is about 70% electric and 30% gasoline. I have a 220 volt charger in my garage. I use the charger included with the car at my shop. It takes about 3.5 hours to recharge the battery with the portable charger after my 14 mile drive into Frisco. There are two settings for the included charger. The 2012 and 2011 have them on the charger. The 2013 is switched through the car's information display.