He probably has someone elses plate on. Do you get chased throughout the EU with non UK plates? Brexit may help eventually after you've died of old age in your 90's.
If so he was in DEEP shyte as we passed them later stopped next to a police car.
In much of the EU the countries interchange fines etc - In 2003 I was at a trade fair in Germany. English sales managers car was ticketed in Nuremberg and the fine found its way to him in Staffordshire. Here its bad enough with he Catalans issuing false fines against non Catalans - Thankfully I have better lawyers than most.
Lots to look at and consider:
S (speed) = mph - V (velocity) = ft/sec - f = coefficient of friction or mu - R = radius - g = gravity (32.2'/sec/sec)
Basic Critical (sideslip) Speed is the minimum speed at which tires will begin to loose traction in a curve, producing a yaw.
Critical Speed = SQRT(15 X Radius X f (coefficient of friction) + or - grade. This is commonly known as the yaw formula.
or V = SQRT (gRf)
To calculate the minimum friction necessary to carve a corner at a given speed & radius: f = S^2/15R or f = V^2/Rg
In this case I took the stated S = 120 mph and using f = .75, I reiterated the formula f = S^2/15R to R = S^2/15f - thus R = 120^2/15 X .75 = 1280 feet (a very, very gradual turn).
I then calculated the max radius for 30 mph (I consider 30 mph max speed or less a twisty) R = 30^2/15 X .75 or R = 80 feet.
NOTE: all this has nothing to do with posted advisory speed signs at corners, which are NOT Critical Speeds and an entirely different thing.
