I ran into this in the latest print copy of wired. I haven't seen it online yet, so I had to take a picture. I was shocked that they reported speeds of 170 MPH on the road between Mumbai and Pune India. The road is quite nice compared to other roads in India, but very windy. steep and mountainous. If that weren't enough by itself you sometimes overtake huge Tata trucks 2 & 3 abreast which meander around the road without regard for the lane markings going at roughly 20-40 KPH. Now my driver got our car up past 100 KPH at times, but I cannot imagine going 170 MPH on this road -- not without an ejection seat and a parachute.

