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

I’ve noticed the end of the speedo would line up with redlining it in the highest gear. While physically impossible to do, it seems to be what they base it on.