Saturday mixes the long Resolfen test in the Vale of Neath with the traditional tests further north, run in the opposite direction to 2007, before a modified stage inside Cardiff's spectacular Millennium Stadium.
The final day is based solely in the south. Drivers tackle 19 stages covering 348.99km in a route of 1428.44km.
Last year:
Mikko Hirvonen won the Wales Rally GB last year leading throughout and eventually finishing 15.2 seconds up on Marcus Gronholm, despite a scare in the final test. Sebastien Loeb completed the top three followed by Petter Solberg and Dani Sordo. Matthew Wilson, Chris Atkinson and Manfred Stohl rounded out the points' scorers in 6th, 7th and 8th.
In terms of retirees a number of drivers' failed to make it to the end, most noticeably Luis-Perez Companc, who crashed out on the final day, as well as Andreas Mikkelsen and Conrad Rautenbach. Jari-Matti Latvala and Henning Solberg both finished but had to SupeRally after visibility problems on day 1 in SS6.