Though his participation at South By Southwest has not been announced, Neil Young was spotted strolling around the Four Seasons hotel and tooling around downtown Austin in his environmentally clean Lincvolt car.

It makes sense: "Neil Young's Trunk Show," a new Young concert documentary by Jonathan Demme -- who also directed the 2006 Young concert film "Heart of Gold" -- is premiering Saturday at SXSW; and a panel discussion on Young's long-awaited "Archives" collection is slated for Saturday afternoon at the Austin Convention Center. "Trunk Show," which is still being edited, was filmed during two performances at Philadelphia's Tower Theater in December 2007 -- where fans were advised it was a film project called "Chrome Dreams." Young has not been confirmed to participate in either event.

As previously reported, Young releases his next album, "Fork in the Road," on April 7. The album's main themes are drawn from Young's involvement with the Lincvolt Project, a joint effort between the singer and biodiesel pioneer Johnathan Goodwin to develop a commercially viable electric power system for automobiles. The prototype Lincvolt vehicle, Young's own 1959 Lincoln Continental, is now completely finished, and a documentary is planned about the car's first cross-country gasoline-free road trip to Washington, DC.