If that isn't enough, here is another 80 minutes of Group B insanity:
Best of Group B
And although not Group B, one of my favorite rally clips:
Onboard with Petter Solberg setting a stage record in Rally Finland in 2004 - Ouninpohja
http://www.youtube.com/watch?v=wMLbn4PmGes Part 1
http://www.youtube.com/watch?v=p0xFXOB5EHc Part 2