Marc Lichtenstein, formerly of Chicago's Avenue Edit, has joined Red Car Chicago as management director and executive producer. Chiara Chung, formerly a producer at J. Walter Thompson Chicago, will handle sales and new business in the midwest for Red Car. As part of a recent agreement between Detroit's GTN and Red Car, editor Christopher Chynoweth has joined Red Car's roster, but will continue to work in Detroit. ...Mitch Raboy, formerly of sound design companies Superdupe and Parallax, James Twomey of Audio Department and Nutmeg, and Mike Levesque Sr., former co-owner of Nutmeg, have formed a new audio post production and sound design company called Mixopolis, based in New York. ...Visual effects and post producer Michael McCarthy has joined Brickyard VFX Atlantic in Boston after spending time freelancing. He has served as a producer at editorial houses 89 Greene Street and Mojo, where he launched their New York office. ...Creative director Andrew Kobliska has joined the Santa Monica offices of design/effects production company Sideshow. ...Atlanta-based broadcast design company Artifact Design has signed Ken Edge, who previously designed for CNN, as a senior designer.