The graph is my best lap (1:30.4, blue) and Chris (1:30.3 red), plotted as speed vs distance. It's probably meaningless without the track map so that's posted as well.
For the analytically minded, you can zoom into the track map, and see the lines you take along the track. You just need to overlay the borders of the track itself although I've not used this feature yet. You can position the cursor on the line graph then move along it and the cursor moves correspondingly along the track map. Therefore you can see where you started braking and powering back on and, of course, your speed. The best feature for me and Chris is that we can put both our best laps onto the same graphs and then compare. He usually carries more speed, I brake later. Strangely enough though, he also manages to get the car to accelerate harder. It may be something to do with our gearchange points.
Peak speed was 113.58 before braking for the chicane. Peak speed at the end of Craner was 97.54.
Oh, and here's a G Circle (oh so Gran Turismo):
