Here's my proof:
http://www.youtube.com/watch?v=8iVdtiRBaz4
Now let me tell you what I see in this video.
I see very fast 1.19 laps, despite terrible racing lines: I can only explain this by thinking that driving aids were on. I maybe underestimate the power of driving aids, I'll give them a try.
I see massive car bumping. It's not a crime, but it's not exactly nice to watch, and I believe many of GT Planet members prefer clean racing (I certainly do).
I see you in the lead at finish line between 4th and 5th lap, which is reasonable considering the lap times, and also proves what I was saying: lapping at 1.19 gets you to win by a few seconds margin.
Now it's totally different from what you stated (at the beginning you said "leading by lap 3", then it became "the end of lap 3"), and you're nowhere near that statement.
I'm happy to see that you're human after all, and that maybe some of your statements might have to be reconsidered.