The Ford Focus RS documentary series is coming along well. The last episode was about Ken Block hooning the hot hatch around the test track. This time, it's about the design and development that went into this monster. The head designers talk about what they did to the car inside and outside to make it functional yet aggressive, with Ken Block monitoring the stages. The video also shows the safety tests to make sure that in the event that the driver does crash, the car will keep the driver and occupants safe from harm.

Seriously, words don't do these videos justice so it's best you check the video out for yourself.