To measure a car's length, I would try yards or feet. Maybe both. It mostly depends on the legnth of a car. A stretch limo would use yards while a VW Bug would probably be feet. For an average car, though, yards.
Meter
mm, cm or m.
Kilometer would be the best unit to measure the length of a car, as the length of a typical car is usually in the range of a few meters, making meters too small a unit for practical measurement.
That depends what aspect of the car you want to measure: for example its length, volume, mass, weight, color, etc.
a tape measure of at least 25 feet or more
miles or kilometers
I would use centimeters.
feet The meter (m) is the international unit (in SI) for length.
The metre, the yard or the foot.
what unit of measure is used when measuring a car
Centimetres and millimetres. In past times, it would have been feet and inches.
meters