I've ridden shotgun with Gilles twice -- the first time, at the Sonoma Raceway in 2013, after his beloved Viper was resurrected from the trash heap of Chrysler's 2009 bankruptcy and lovingly improved.
The second time was a year later at the Circuit of the Americas in Texas, with Gilles driving a Jeep Grand Cherokee SRT.
I remembered those harrowing rides this spring while watching a new hourlong documentary on Gilles on Netflix. Abstract: The Art of Design tracked Gilles as he and his team developed the Chrysler Portal concept a year ago. But it was his comments about racing in the documentary that revealed what drives one of Detroit's top designers.