I've scoffed before at the decision by the NASCAR potentates to label their new chassis the "Car of Tomorrow." Now, as the 2008 racing season is about to get rolling, international sports car racing - where new ideas are actually being tried and refined - moves another step forward. Toyota, which last tacked the 24 Hours of Le Mans in its GT-One in 1999, will return in 2009 with a hybrid-powered prototype. It will take on the next-gen turbo-diesels of Audi and Peugeot. Perhaps even Honda may join in the fun by that point.