general problems of the 2003 Mitsubishi Lancer

Vehicle decided to shift to low gear while on the highway. It shift gears automatically for no reason.

The clutch cylinder release keeps leaking until it wont clutch. You cant shift gears. Its happenedd 6 times in the last 3 years. The car isn't used for any type of racing because it doesn't even have enough power, just for regular everyday driving. I've talked to the dealership and they said that they will not cover it because it has no warranty anymore but the cars defective and that is their problem. I've been reading and it seems my car is not the only one with this same problem.

At around 9500 miles the car began sticking, slipping gears, jamming into gear. It was diagnosed as a failed body valve, which they ordered and sent me home for 10 days waiting for the part--meanwhile the car progressively became worse, making entering the freeway questionable, etc. After 10 days it began doing the same thing--took car back in--they sent me home while they tried to reach Mitsubishi. . . When I demanded rental stating I did not feel safe (I called Mitsubishi, who intervened and had me take car back to dealer until it is fixed). Dealer told me they are ordering 6 more transmission parts based on Mitsubishi's advice. Meanwhile, I spoke with an independent mechanic who worked for Mitsubishi, who said that if the body valve failed, there is probably internal damage to the transmission and that talking on the phone and ordering parts is not fixing the cause of the problem--also that the transmission and computer have to be in sync, and a damaged transmission could affect the computer of the car. So we have techs talking back and forth on the phone, a dealership service dept that does not have the answers talking to a tech hundreds of miles away, and neither party has seen the inside of the transmission. . . . I feel like I have a defective car and am running to the shop which is just putting bandaids on the problem.