Agree with hi - the allowance is generally to enable mobility, not to buy a car. Your employer does not give a hoot what you do with it, it's added to your salary, taxed with your salary and included in your single net pay amount.At that point it's yours to do as you like. I'm currently using mine to part fund the renovation of a house I've just bought so that I don't have to take a loan out.Everyone's a winner!