Cost: Under $30,000
The limited-run three-wheel, two-passenger 2011 DUO promises 300 miles of driving using $6 of electricity, rather than $50 of gas. DUO stands for "doesn't use oil" and adds an extra passenger capacity to Myers Motors' original NmG ("no more gas") electric vehicles. The charge can handle a daily 60-mile range, with an option for a 100-mile range for drivers with longer commutes. And it fits in a motorcycle parking space.