I didn't say it's not possible, I'm saying it is significantly more difficult. In that zig zag ride with the Veyron on a soaking wet tarmack it absolutely way harder to keep the car on the road while going fast. Maybe I just had bad luck with a rainy version of autumn and I could retry it with a dryer one, but pfff I will just wait until the next summer, there is plenty of stuff to do and AC Odyssey launched this week as well.
I haven't tried to blast through obstacles much with the "world's fastest" series, other than going straight through the middle at a roundabout most of the races are already in a straight line. It's not like the Drift Club where you can basically just drift to the highway, do your stuff there, and then drive in a straight line to the checkpoint.
Drift Club leaderboards are absolutely broken because of the way you can exploit it.