In return for the vehicle, you are entitled to a refund of ALL money you have paid towards the vehicle, such as any down payment, trade-in value, monthly loan payments, plus payoff of any balance on your loan, plus attorney fees, expert witness fees, and court filing fees, LESS mileage on the vehicle up to the first repair attempt for the problem you are complaining of (calculated at 1/2 the IRS business deduction mileage rate). Or, another way of calculating your refund (which GM uses) is that in return for the vehicle, you receive the cash purchase price, plus all collateral charges such as taxes, title and tags, plus any interest you have paid on the loan, plus attorney fees, expert fees, and court costs, less the mileage deduction as described above.