YIKEBIKE for one or two riders.
The top of the line YikeBike, weighing in at just under 25 pounds! Folds and unfolds in about five seconds, takes up about 1.5 cubic feet of space and rides up to 15 miles per hour. This model costs $3,995 but the two lower version cost $1K and $2K less and just weigh more.
http://electricridereview.com/yikebike/carbon/