why does a driver's preference differ from a car's. how to find the fuel consumption of a particular car how do you measure fuel consumption in excel what is the definition for fuel consumption how to get a consensus in a matrix what is the difference between a drivers rated fuel consumption and a subset of their cars which is better fuel consumption or emissions why do we need a matrix for fuel consumption what is the purpose of each driver's calculation which method of testing is best for fuel consumption? how to find a common fuel consumption which model of car is best what measures fuel consumption? what are the different ways to measure fuel consumption how to check fuel consumption for a car which driver has the best fuel consumption rate? why is the fuel consumption different for different drivers does the same car driver have different fuel rates why use different methods to test for fuel consumption? which method is best to test for fuel consumption