The fastest I've been is either 169 which some auto magazine read as 179 and said "read off the scales in both rpm and mph" for a Aston Martin DB5 coupe. They got it to go 179 or 181 - I saw 169 -  I don't remember faster and a friend who has a modified Firebrid Trans Am which he calls the Foxbat that reads 171 - both out in Kansas where the roads are flat and go on for miles.
We are slugs here in the US. I'm guessing 160 + in either case.
Road goes by real fast and headlights disappear instantly in either one.
 
;~)
 
Vanagon camper does 40 mph up hills . . . .