Here's a clip from Jay Leno's Garage on the Vanderhall Venice vehicle which is being produced in a small factory in Provo Utah by some 32 people at a rate of 500/year.
Compare and contrast this to the Elio, which while not as fast or sporty, seems a lot more practical. Sorry, I can't find any of their videos. Total production for Elio in the last 5 years has been limited to 5 or 6 prototypes and a bunch of press releases. They have a stake in a factory building in Louisiana big enough to support a space program in which nothing is being produced.
Vanderhall says they plan to expand next year to produce 1000 vehicles/year.
If you're going to be an entrepreneur, item 1 on your list is to get your product out in front of the public, even in small quantities.