Or going fast/roughly over the curb? Remember that you don't have to take that kind of corners so slow anymore with the new physics...
There has been no update about the new aston config (or then they gave that already with the FXR pic), GTR cars cockpit improvements (?), locked diffs (?) or... hmm that's about it then. Altough the upcoming teaser updates could be something very minor gfx updates so they can delay the release to the end of April.