The 2 pixel thick black borders are now only 1 pixel thick. Hopefully this will make Carsurvey.org rather easier on the eye, as the old thicker borders tended to distract from the actual page content.
I may experiment with lightening the borders further (grey rather than black) if this change is well received. No plans for curved corners or gradients though, just in case anyone thinks Carsurvey.org is arriving late to the Web 2.0 style party.