Back in February 2008, Tesla delivered the first "production" Roadster to Elon Musk http://www.autoblog.com/2008/02/05/elon-musk-takes-delivery-of-first-production-tesla-roadster/

This particular car was more like a late beta version of the Roadster since it didn't incorporate many of the changes that would be included in cars 2-40 and then the V1.5 powertrain that would be added from car 41. Car #2 for co-founder Martin Eberhard wasn't delivered until late July and monthly deliveries remained in the low single digits until well into the fall of 2008.

Musk had previously committed to delivering the Model S in the first half of this year and he did that but it appears they are still working out the car and production process and likely will for many months to come.