I just spent more than an hour on this crap, failed a 40k combo twice and then ran out of fuel at this point:
http://prntscr.com/27ipfd
Seriously... You have to drift nearly flawlessly to get that level 100 before running out of fuel. When I have too much spare time I'll try once more.
About Imola: try going 2 wheels onto the first curb of the chicane then let the car out to the wall on the right completely. I know that's not really legal, but that's how that lap was done.