Quote Originally Posted by dubs04sti
Def for people to slow down.. Byt the engineer has his Porsche GT3 in the back of his mind
I think it may technically be for trucks... if you look at the incline there, it's pretty steep, and a truck would probably have a hard time getting up it... so they did the loop to break up the incline in a space where zig-zagging wasn't an option because of the mountainside.

But yes, the engineer probably said "Zees road est boring... Porsche like zee loop-zee-loop! No one else matters!"