(TCO B, D) At Super Car Outlet, Joan was negotiating with Marge for the purchase of a used car. Marge told Joan thatshe would fix any problems with the drivetrain that arose in the first 1,000 miles. After further negotiation, they signed a written agreement that provided that the sale was made "as is, without any warranties." After driving the car for 400 miles, the antilock brake system failed. Marge denied having made the repair promise. But she said she would cover $200 of the repair costs. Joan then took the car to be repaired at a cost of $487. Joan now wants to recover the full repair costs from Marge. Marge refuses to pay any amount. Discuss the issues that would arise in this case.