The Tesla Roadster is clearly no longer just a concept but is fully in
production as shown in this video by the owner of Tesla Roadster #16:

Now, there is an automobile available that does not rely on
petroleum. The Prius is a poor performing gas guzzler compared to
this thing.
Now let the market respond and the price of batteries go down.

Before people slam the high cost of this eco-machine, they should think about the fact that Tesla intends to make affordable cars, however, for a startup company, they need to start with a car that can make them money with little initial investment. Tesla plans to come out with their Whitestar 5-seat sedan in a couple of years for around $50K - $60K. Then, to really save the planet, the plan to come out with an economical sedan, code named "Bluestar" which will truly be affordable by the masses.

With the Roadster in production, Tesla will have the attention of the battery industry and will be able to drive the prices down to make pure EVs affordable.

"ex-EV1 and future-Tesla driver"