I almost bought one but it's really more car than we need - almost too wide for our San Francisco garage. Instead I bought $20K of their stock and am waiting for the smaller sedan.
I was shocked to learn the extent of shorting Tesla stock -- Yahoo Finance reports 52% of float (as of Jan 15 2013). That's more than Groupon and Overstock! I suppose it could give the stock some pop if they can pull it off, as those shorts will scramble to cover.