why do speedometers go as high as 140 – 160 mph but some average cars can’t go faster than 100 -120?

Question

why do speedometers go as high as 140 – 160 mph but some average cars can’t go faster than 100 -120?

In: Technology

Answer 1

Almost any motor vehicle can go fast enough on a long downhill. 

If a car can go 120mph on flat road, it could most likely reach 160 on a downhill