Venture Beat is reporting that comments made at Engadget reveal that Tesla has finished its first prototype Model S electric sedan which isn’t expected to go on sale until 2012.  Apparently a Model S manufacturing employee Brian Z Jones made a comment on Engadget commenting on the first run of the prototype:

“I just got to see the 1st Alpha proto run…. And, boy, did that thing run! The production vehicle will be as sexy as the red/silver rollers in all the photos. So awesome….” Brian Z. Jones wrote. His Facebook profile identifies him as a production control manager at Tesla.  Venture Beat posted the full comment so click the link above to read that if you’d like.  Jones discusses battery swapping as well.

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The first prototype was expected to be completed in December so the comment does indicate the company has met its first target and is likely still on track to have the car available for purchase in 2012.  However, it’s still VERY early in the game and many more prototypes will come.