Rhode Island

States across the country are looking at permitting testing of self-driving cars on their roads. But those enthusiastic efforts can often bring unexpected complications.

OK, so it only took a couple of years for Rhode Island to get the hang of electric vehicle-specific license plates, like its New England neighbors. Now that the smallest state in the union has caught on, it's nice to see that Rhode Island has upped the game by including hybrids in that strategy.