I attended the Goodwood Festival of Speed today. Kazunori Yamauchi drove a car (a Jaguar I think) up the hillclimb. The commentator commented that the car was "festooned with cameras". Maybe the Goodwood hillclimb will make it into GT5? Of course the cameras could have been there for a different reason - e.g. for a video.
http://www.goodwood.co.uk/site/content/festivalofspeed/Interactive-Hillclimb-Map.aspx
http://www.goodwood.co.uk/site/content/festivalofspeed/Interactive-Hillclimb-Map.aspx