The cross-examination of the expert witness by Toyota was really weak.
This could indicate that Dr Barr was proving a very credible witness under cross examination. Pressing matters further on the points that you suggest might have been counter-productive and reinforced Dr Barr's credibility with the Jury rather than undermining it, as the defence might hope. So they would move on and attack from a slightly different direction.
Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.