Accepted Answer
We look at the criteria to select a car.If we are not too rich, we have to bother about fuel efficiency. The mileage in terms of km per liter or miles per gallon etc.engine power - whether it is good enough over a slope (steep) that I may encounter frequently with my family members.internal space / total external size : or internal space / total price: We find these numbers. after all , we make use of the internal space on seats. we have to know its proportion in the total volume of the car.the axle turning capability, wheel turning ability : see the minimum radius and span required to turn a car in a U turn.we have to bother about its pollution, emission level.height / width ratio, which is important for the balance of the car.==================================If we are looking at the economic point of view monthly benefit/savings of using the car,converted into currency - Loan EMI