This purple variant was released in a Wal-Mart exclusive Gotham City 5-pack in 2009, which included Batamn, Superman, Lex Luthor, and Two-Face- you can get this set for anywhere from $65.00 to $100.00 currently from a variety of online sellers.
I must say she was FUN to photograph with her (laughs) rubber whip, and was relatively easy to pose, due in part to her wide boots- She stands a little easier than the DCUC Cheetah I just got... kinda cute, isn't she?
Better watch out, Batman! This saucy minx looks like she might scratch...! Catwoman is, of course, Selina Kyle, the DC super villain that seems to enjoy getting under Batman's cowl. Their romance is one of The Dark Knight's longest running, first appearing in Batman #1 (1940).