I didn't know Kardasian was in the s-l-o-w speed chase; I thought it was just his friend, another sports’ guy - can't remember the name. I think the friend was driving and talking to police on his cell.
The old courtroom saw about "the jury will ignore a blue horse!" applies here. Just get a sensational bit of fluff in there, and you can steal every juror in the box.
You're right, his companion was another former NFL running back (I forget his name, but he was well-known around the League).
Robert Shapiro, iirc, later repented publicly of some of the Dream Team's tactics and "lawyering" and making OJ into Race Man. The team went to extremes making the prosecution all about Det. Fuhrer and his audiotape of showing off for girlfriend, telling Great Big Tough Cop stories and using the "n-word" occasionally, which was the total ball game for Johnnie Cochrane, because he knew what a mostly-black jury would do if they heard the tape.