Here's a list of useful motoring sites that we've put together for your convenience.

AA Router planner

DVLA/Gov
Need a new or duplicate registration document?
Driver Vehicle Licensing Agency (DVLA)
Direct Government Motoring Generally
Road fund prices
DVLA Cherished numbers
(there's an element of duplication between the DVLA site and the Direct Government site)

Company car stuff
Identify the vehicle excise duty and/or the relevant Company Car tax percentage bracket, based on their CO2 level.
vcacarfueldata
PriceWaterhouseCooper's Online tax calculator
Inland Revenue's car page

Speed cameras
Speedcameras UK aim to show the location of all cameras in UK, and explains the different types of cameras in use
http://www.speedcamerasuk.com/
http://www.ukspeedcameras.co.uk/
Links to different counties
http://norfolk-safety-camera.org.uk/index.php?page=links

The Highway Code