Speed of the car can be known by the numbers written on the tire, exceeding which can be harmful.

– The numbers on the tire’s side wall indicate the maximum top speed.
– Different alphabets represent different top speeds, such as V for 240 kmph and Y for 300 kmph.
– The numbers on the tire can also help determine the tire’s width, side wall height, rim size, load capacity, and construction type.
– The last alphabet on the tire indicates the speed index.
– In conclusion, the numbers written on the tire’s side wall provide important information about its specifications, including the maximum top speed.
– It is essential to understand these numbers to ensure safe and optimal performance while driving.