After two hugely successful fall festivals, Santa Rosa’s lengthily named Great West End & Railroad Square Handcar Regatta & Exposition of Mechanical & Artistic Wonders is getting its own art exhibition.

“Sideshow: Art of the Handcar Regatta” opens with a reception from 4 to 7 p.m.  Thursday, March 4, and runs through April 4 at the Sonoma State University Art Gallery on the Rohnert Park campus, 1801 E. Cotati Ave.

The exhibition will feature some of the eccentric festival’s artistically crafted handcars, costumes, banners, paintings, sculptures and various ephemera.

Participating artists include Todd Barricklow, David Farish, Andy Graham, Theresa Hughes, Muir Houghton, Frey Marcelis, Gene McClelland, C.D. Payne, Tony Speirs, Krank-Boom-Clank and more.

Gallery hours are 11 a.m. to 4 p.m. Tuesday through Friday and noon to 4 p.m. Saturdays and Sundays. Admission is free. Information: 664-2295.

The third annual Handcar Regatta, with improbably designed and decorated contraptions riding the rails at Railroad Square, is scheduled for Sept. 26.