the video about this is not on You Tube yet. It's in the most recent episode of Roadkill, and if you want to watch it right away, you have to do that on Motor Trend On Demand. Which, though free for 30 days, will then cost you 5 bucks a month.
I can wait. Hell, I've only ever watched 2 episodes out of 52, so, evidently, I can out wait them a really long time.
https://www.youtube.com/playlist?list=PL12C0C916CECEA3BC for the Roadkill videos 1-51. I'd guess that this one will be available next week