Picked this up on edmunds.com and others...
"Tesla Chairman Says His Company, Daimler to Launch Two Affordable EVs Soon; He Also Says Next-Generation Roadster Will Have Four Seats and Optional AWD" Green Car Advisor
''Musk described the next-gen sports car from Tesla as being a four-seater, like the Turbo Carrera, but with backseats that are 20 percent larger than those of the Porsche. The backseats will be capable of handling someone up to 5 feet 6 inches tall in comfort, Musk said, adding that the trunk space will be nearly twice that of the turbocharged Porsche.''
Sounds like an Evora EV variant to me and he's pitching it as a competitor to the Porsche turbo, with a 2012 launch.
Sounds very ambitious, and if he's pricing it to compete with the Porsche Turbo then it looks like a completely viable business proposition.