Takes place right after 3rd Stage...
this is pretty much what happens in 4th stage, so dont read if you dont want to know
No pictures, and its a summary, but just use your imagination

Its pretty general, but it works...
http://c.1asphost.com/CP9A/PD.doc
I'll make his descriptions more specific...
*spoilers! dont read this until you finish the summary
Takumi's race against the Roadster was just as he said, the Roadster ended up flipping. With Keisuke racing the Skyline, the Skyline uses braking out-in-out style, which Keisuke makes fun of...he says it was the momentum of coming out of each turn that the style ruined, and Keisuke used the momentum to reach speeds that the Skyline will never reach with that type of driving. The EK9 vs AE86 was just as it says, the EK9 thought that the AE86 was racing to its full potential(was actually only at 9k rpm), and began doing all sorts of fancy tricks to pressure him. But in the second round, the EK9's tires were pretty much fudged up, and the AE86 was racing at its TRUE potential. In the DC2 vs FD race, he just lightly tapped the brakes to make the lights go on, throwing off Keisuke and making him slam the brakes. That and he goes really fast into to the turn and then brakes really hard, but yeah. Everything else beyond that is pretty close to what happened...

Pwned. That dude cracks me up