Tesla says it will launch its Model S electric sedan with a limited edition Signature Series model.

With final testing of its Model S in full swing, Tesla has revealed some more details about its upcoming electric sedan. The Model S is schedule to arrive in the United States market in about a year.

Although the Model S will eventually be available in three trim levels - or rather battery levels -- Tesla says it will begin production with a limited edition of its top-spec model. Dubbed the Signature Series - which will see a production run of 1,000 units - the range-topper will feature a 300 mile battery, unique badging and an "extensive complement of options."

Tesla has yet to announcing official pricing for the 300 mile version of its Model S, but the California automaker expects a price tag of about $77,400, not including a $7,500 federal tax credit. North American deliveries are expected to begin in mid-2012.

Following the launch of the Model S Signature Series Tesla will begin production of the regular 300 mile car, as well as the 230 mile and 160 mile models. European delivers of the left-hand drive Model S are currently scheduled for late 2012.

A right-hand drive version of the Model S is also planned for some European and Asian markets, but that model won't arrive until mid-2013. Like the first North American models, Tesla plans to launch in each new market with a limited edition of the Model S.

Tesla plans to produce 5,000 units of the Model S in 2012 before ramping up to 20,000 units in 2013. Tesla will announce pricing for the full Model S range sometime this summer.