It lost power brakes during my driving at 45 miles/hour. The vehicle couldn't stop more than 200 yard before a traffic light. I almost hit into traffic which runs at 55 miles per hour. The car drove about 25000 miles when power brakes failed. Porsche said vehicle's vacuum pump broken. They fixed. I asked them what is life for a vacuum pump, they rejected to answer. I asked them why the vacuum pump failed, they said it was scrapped, they don't know. I asked them how they are sure the new one would be good. They told me that is why they provided 4 years warranty/50000 miles warranty. I told them it is safety parts, if they can't tell me what's wrong, I don't feel comfortable to drive. It is horrific experience when power brake lost, the car out of control, couldn't stop. I am lucky I didn't hit anyone because no one in front of and luckily again the car stopped about 20 yards before traffic lane on route 55 in il.

- Wauconda, IL, USA