7:07 is the best I've managed. I just can't seem to string a lap without one error. The exit of Karussel always seems to get me.
I golded the individual sections, so this one final silver is quite annoying to say the least.
Sorry if obvious, but the great thing about the Circuit challenge is that you can practice the bit that you suck at, so do that karussell until you can drive it blind.. i had the same problem with other parts of the track.. i lost to much time because i sucked.. i practice just those bits and made it.. :-)