请教：Toyota 车祸

我的Toyota corolla 开了五年，这周一发生了一次很大的车祸。我在高速上开车回学校，在一个弯道的地放我想减速，踩刹车后，车子一点没有减速，然后车子失控，冲出高速，我使劲踩刹车，最后车才在一片泥巴水塘停里下来。我身体没有受伤，但是人吓个半死。现在车is in Toyota body shop. Minor damage of the front bumper。我有全保。但现在很害怕再开这车，我在上学，还要在高速上开到年底，我的底线是Toyota return 我的这款车的市场价，我想换一辆别的牌子的车。This is the second time I had the same problem with this car. Last time I just felt the brake does not work appropriately. The brake itself does not have any problem.

这款车只有2009-2010在reall list上面，我的是2005的。We reported this case to the Toyota Coporate ，they will have one of their case manager contact me soon. I will let you guys know about the result. My program director is an attorney herself. She contacted the Toyota dealer ship and some of her attorney friends. According to her attorney friends, since I did not have any physical injury during the accident, Toyota might just refund us the current market value of this car, at best.

请教各位专业人士如何打这个官司。我很忙，真的没有时间跟他们耗，请教我该怎办？