Brake Light On problems of the 1999 Volkswagen Jetta

My car has been in the shop nearly every month in the past year (except for 3 months when it was in the shop due to accident), the brake pedal would stick almost every time it was driven would contact dealer and they could not find anything wrong because it was not reporting to a computer. I finally figured out if I put my foot under the brake pedal and pull it back out it would release, it once would not go over 40 mph. I called a tow truck multiple times to have it taken down to dealer still no one could find anything wrong. Then I was sitting in a drive thru and the care made a popping sound and the brake pedal went to the floor and I lost my brakes but I pressed them again and they were fine. I contacted vw and they did not know what it was. Driving home I tapped the brakes to slow down a little and the brake stuck and threw me forward luckily no one was behind me. I called vw immediately and told them that I did not want my car back until it was fixed. The rep drove my car for a week and of course nothing happened til the mechanic drove it. I have had the master cylinder and the brake boosters replaced which has seemed to help the brake from sticking but now my rotars are ruined and vw does not want to replace them becasue they are maintenance parts when it was a warranty part that made them go bad. Recently driving to san diego my cruise control would not keep my car at a set speed, would not pull hills (had a fully loaded semi pass me) would drop to 40 mph on grades, had to keep the car pegged to go posted speed limit on straight stretches. Windows have fallen twice on each side, middle restraint in back seat locks up and has to be replaced, cup holder broke, brake relay went out several times (no brake lights almost rear ended). Is there anything I can do on this will it fall under the lemon laws. I want to replace it due to high cost and time spent going back and forth to the dealer but I more than it is worth. What can be done about this?.