Penelope Pitstop is the standard Poser 4 Nude Woman, scaled to 103% of her default size. She is wearing the Vintage Helmet and Goggles by David McLaughlin and an Uzilite scarf (I lost the scarf when my Mac mini crashed in October 2010), her hair is Alice Hair from Kozaburo, her skin texture was made by Tim Laubach, and her gloves are from Nerd World. The rest of her clothes were already included with Poser 4.
Having seen the “Rearview Mirror” and “Spinout Spinoffs” features on the Wacky Races DVD set, a copy of which I won in a trivia contest from the Big Cartoon Database, I have to say that Janet Waldo, who reprised her Penelope role in the 2000 Wacky Races video game, aged remarkably well. I am leaving this page up in memory of Janet, since her death in June 2016.