Even though the Nissan Leaf remains my first choice, I am checking out other options to get in the carpool lane. Motorcycles can do it, but they seem very unstable to me, and you have to have a special motorcycle license. Not very appealing
So I was quite surprised to learn of the Can Am Spyder Roadster, a three-wheeled motorcycle sort of vehicle. It drives like a motorcycle, but with none of the stability problems. And in California, for some odd reason, you can drive one with a regular car license. But it's allowed in the carpool lane as if it were a motorcycle.
I haven't test driven one yet. Still trying to figure out if I could get used to the look: