The fact is that in this case the police have a video from Applebee's that shows the Solara driving through the parking lot and then seconds later the boys driving on Iron Point Road. From the video they can determine how fast the boys were driving, the order of the cars, the lanes they were driving in, and how close the cars were to each other.
In the video, the white BMW is in the lane closest to the sidewalk and the Dodge Stealth is in the middle lane.
The BMW is approximately 4-6 car lengths in front of the Stealth.
As they go into the turn this would mean that the BMW is between the Stealth and the Solara, limiting if not fully blocking their view of each other.
Now we move from the video evidence to the Police Report.
The Solara pulled out and the BMW went behind it without any problems.
At this moment, the Stealth is presented with the Solara, which is stopped in his lane, for the first time approx. 166 feet in front of him and hits his breaks.