I was just aimlessly looking on ebay the other day when I came across this 5 piece bodykit for £21,800 consisting of "Front Bumper Spoiler, Side Skirts, Rear Bumper Spoiler, Trunk Spoiler & Roof Spoiler" does include free postage. http://cgi.ebay.co.uk/WALD-5-PIECE-BK-BISON-BODY-KIT-BENTLEY-CONTINENTAL-GT_W0QQitemZ260345542961QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item260345542961&_trksid=p3286.c0.m14&_trkparms=72%3A1683%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318
For pics of it at the Tokyo motor show look here http://www.madwhips.com/wald-bentley-continental-gt-black-bison/
Admitedly it's a fantstic improvement over the standard boring look of the car but definiely not cheap and you'd still need to pay out for fitting, painting, wheels and exhaust. Ouch!