Problems with 1998 Lexus GS 300 ELECTRONIC STABILITY CONTROL

Purchased a 98 gs300 six months ago and my vsc, abs, brake light and check engine warning gauges came up and will not go away. did some research and found out the brake master cylinder, throttle position sensor and throttle position actuator were the problems. with these few items gone bad my car produces little to no power during acceleration. the car barely gets up to 45 mph with acceleration pedal all the way down to the floor. with the vsc gone bad there is an alarm that stretches to uncomfortable hearing levels that' hurts like the devil. my car will literally stop in the middle of cruising and won't pick up any speed unless i have my foot pedal all the way down to the floor, which also often times causes it to turn off on highways, all types of streets and other areas. also with these items gone bad my car shifts so hard to the point where it jumps whenever i shift into any position. all in all the vehicle, i feel , is too dangerous to drive at this time

Tl* - the contact called stating that she had a crash on 07/09/06 in her 1998 lexus gs300. the contact stated that she lost control of he vehicle while driving at about 55 mph. the contact stated that while trying to move into the right lane the vehicle starting going back and forth across the road and the power steering failed. the contact stated that this was on a clear night and, that when she applied the brakes the vehicle was more difficult to steer. the vehicle also seemed to accelerate. there was a police report made that states she lost control of vehicle. the vehicle was towed by aristocrat towing to aristocrat auto shop. the passenger seat air bag didn't deploy and the passenger didn't have on a seat belt. the contact did have seat belt on but, driver side airbag didn't deploy. there was a recall with campaign # 98v080000, and she contacted lexus that her vehicle was not part of this recall.