If Ace Combat: Assault Horizon can have Idolm@ster themed jets, Ridge Racer can have Idolm@ster cars. (I think?) Well, you’re getting them anyway, as downloadable content.
Extra colors with Idolm@ster graphics cost 500 yen ($6) a piece or 2,980 yen ($36) as a pack. Namco Bandai also plans on releasing songs like "Go My Way," "The Idolm@ster 2nd-mix," "The world is all one!!," and "Megare!" for 150 yen ($2) each in May.