kill the music next time, and put your foot down...the music is throwing you off, it makes you feel like you are going faster than you are, and you cant very well hear the tires when driving with music on...when canyoning my best advice is, windows down, music off, foot dowwwwwwwn

you could have squeezed at least 5-10 mph more minimum out of those turns, of course don't do it unless you are confident in your driving skills
cool vid though

brings back memories of dans vids