International Sports Car Racing Day is this Saturday, March 18, so we thought it might be fun to find our sartorial inspiration at the racetrack, or, in my case, the car dealership on a Sunday when they are closed. This racy little holiday always falls on the third Saturday of March to coincide with the 12 Hours of Sebring sports car endurance race held at the Sebring International Raceway in Sebring, Florida. Ironically, in the wake of my divorce when I was 26 years old, I purchased a white convertible Chrysler Sebring with a white rag top. Oh, it was a such a girly car, perfectly suited for a 26…