In the second part of his story sniper.liao writes about the parts that Hirsch has added to the 9-5 and how they work. What is really worth a look are the photos they took, most likely still in Switzerland. The full story can be found on http://car.cool3c.com (English translation).
Click here if you missed Part 1.
Images courtesy of sniper.liao/car.cool3c.com.