TreeHugger Sami lives in Durham, North Carolina where they make the ELF, a solar and pedal powered hybrid vehicle that is "specifically designed to get the cycle-challenged out of their cars." I recently was in Durham and visited Organic Transit with Sami, and got to try out the ELF for myself, as well as getting a factory tour.
Here's background from Sami if you want to catch up:
Meet the ELF: An American-built solar-powered trike
Organic Transit ELF velomobile now with two-seater option