My old man has been on one of these speed awareness courses & was told that these are now in operation for testing on roads into Scotland. They will be rolled out across the country by end of 2013 according to the Traffic plod that was running the course
http://www.autoexpress.co.uk/nissan/35086/tyre-cameras-revealed
http://www.autoexpress.co.uk/nissan/35086/tyre-cameras-revealed