I added a bit more info by editing my post.
[youtube]
http://www.youtube.com/watch?v=tx-lopdB9bU[/youtube]
And here we go with a bit of analysis of the relevant frames
Cervert leading the gagle of five cars with Peterson and Gethin in his slip stream. Disregard the leading car which is lapped.
Peterson with Gethin in tow goes inside out of the slip stream of Cervert, who stays outside. Gethin is offset to the outside behind Peterson.
Gethin lines up more behind of Peterson as Peterson covers the inside.
Peterson drifts outside and Gethin starts to move to the inside
Gethin gets out of the slip stream of Peterson gaining the inside. Cevert falling back.
They enter parabolica with Peterson leading in the middle line, Gethin on the inside line and Cevert on the outside.
Gethin come out ahead of Peterson, who is close to him and Cevert already well behind.
Peterson lines up behind Gethin for the last slip streaming
Gethin, Peterson and Cevert all nicely lined up
Cevert moves out of the slip stream
Peterson moves out of the slip stream
Gethin passes the back marker to his right while the three podium finishers are in a staggered order.
Peterson is gaining on Gethin as Cevert is falling back
Peterson's momentum is not sufficient to beat Gethin. Cevert way behind now.
IMO this race shows that highly restricted aerodynamics can give you exciting racing. They "only" had 460 bhp at that time. So with modern engines delivering 760 bhp one could probably allow quite a bit more but not the excess we have since 20 years.