Tesla Motors has come out with a premium electric sedan, Model S, the first mass-market model for an electrically-run sedan.

Telsa delivered the Model S to its first customers at an invitation-only event at the Tesla factory in Fremont, California today.

''These deliveries put Model S on the road approximately one month earlier than previously announced,'' Telsa said in a release.

Price of the base model starts at $49,900, after a federal tax credit of $7,500, and the car can go 257 km on a single charge.

The Palo Alto, California-based carmaker says it expects to sell 5,000 this year, followed by 20,000 cars in 2013.

''In 2009, we set out to build the most innovative car of the 21st century, and since then have dedicated ourselves to developing and testing Model S to ensure that under any situation, Model S never disappoints,'' said Elon Musk, Tesla Motors co-founder, CEO and c product architect. ''Today we achieved our goal with an exceptional car that we believe sets a new standard for efficiency, safety, style, technology, operating cost and performance.''