Haha Artz, yes general idea is to aim for sand then turn at the last minute... I only stuffed one part of that theory up...
As for faster cars, exactly as Artz said, you can just get out of their way and they won't care about you. On that fatefull lap for example, Artz could have eaisly stayed in front of me through the strait and then pissed me off around the corners, but he just pulled over and let me through, no hard feelings on either side. Don't worry about going slower, as your skill and confidence grows, you may end up passing them one day!
Winton is such a good track for beginners too. Max speed last time I was there was only 160iirc.