Last night while watching some good old game 7 playoff hockey, I went back and watched Dr. Rudin's 402 hearing from the beginning of February to see if I could get an indication of why the defense would call him now...
during that hearing, Dr. Rudin had said that he had sent additional documents the night before, which neither side had been able to look at yet (the defense had it by next morning but had not looked at it yet)... near the end of that hearing, Dr. Rudin had said that once he got more information, which was the Faro Scan of the neighborhood, he was able to do way more calculations, including figuring out the angle the camera was at, and things like the wheel base experiments.
Another thing that I had noticed with Rudin's testimony... he had that back passenger top light as a "matching point" on the truck and video. (attached snip) Knowing that the prosecution (IMO) abandoned that with later testimony from Smith and from Luscio about the back latch and reflection... it makes me wonder what Rudin came up with when he got more information from that Faro Scan. JMO