Jimsin, on that last chicane if you keep right, you can zoom through and airbrake hard right at the last second to get around the corner and line up the boosts easily. If you aim to just hit that edge, you'll sort of drift around the corner and miss it, even though you're turning to the right. That way you can hit the boost before it too.

I find it's the best way when there's alot of other racers around you, since everyone else seems to hug the right hand side you can edge them out and into the oppisite wall as you turn.