Because sometimes the speed dial on your car can be up to 10kph different than your actual speed so I personally would trust your sat-nav
the kind of car is the speed of car
The speed of the car. The speed-o-meter only shows a magnitude ( or a number ) and to tell the velocity of a car it would have to give that speed some direction. Since the speedometer assigns no direction to the car, the number assigned as the speed of the car cannot be the velocity of the car.
nothing, it displays the speed of the vehicle in motion.
Chart? There is no chart. Your question makes no sense.
The speed would be slow and if it was fast.
It depends on the car...every car has a different top speed...to convert from MPH multiply the speed in MPH by 1.609 to find KPH
Max speed for every car is different-need to know which and what drive train
Car will not move when in gear. When accelerating, the engine speed jump but the car does't increase speed very quickly.
A digital tachometer measures the speed of objects. They measure the rotations of an engine shaft in a car and then record the number of revolutions per minute on a dial.
Not as much as the shape of the car but different finishes do affect drag.
car is not always moving at constant speed
They may find out through the car insurance company, The car insurance is higher when the speed if over 5 miles above the posted speed. It's always better to tell the truth.