Yeah, the car undershadow should never disappear. The fading out of the realtime car shadows, depending on the distance from the camera, would be more acceptable if the undershadow was always shown. Hopefully they'll fix it soon, as it kills watching replays on some tracks. The latest Vette from ISI is a big improvement over the previous version. It's no longer quite as willing to kick the back end out whenever it felt like it. Driving it reminded me of Simbin's GTR1. URD's is still a bit more planted though.