Are you sure the "rubber banding" isn't just normal race behavior? In circuit racing, the cars tend to follow each other at pretty stable intervals. In other words, the time between two race cars stays constant. As the speed of the cars ranges from 50mph to 200mph+, the distance between two cars changes a lot as the time between the cars is relatively constant.
So in slow corners, the cars pack close to each other (feet or sometimes even inches) and as they accelerate out of the corners at 2g+ the distance can increase to tens or hundreds of feet.
"Are you sure the "rubber banding" isn't just normal race behavior?"
Yes (I'm sure it isn't), zoom in on the bottom right hand corner of the track (turn 4), in reality the cars go from 320kph to 100kph in the breaking zone of this corner, on the page they're doing that almost instantly as they hit that point.
