I love my recently purchased 1991 560 SEL dearly, but I think it tried to kill me the first time I took it on a trip longer than the 25 miles it takes me to get to work. I was travelling down the highway and had the cruise control set to 65, got slowed down by some other vehicles, then engaged the resume function on the cruise control to return to speed. Since this was a slightly inclined segment of the higway, I was not suprised when the throttle opened all the way up and it shifted into passing gear, however when this behavior remained intact after an impressivley short amount of time for the car to reach 100 mph... I began to get a little worried. By the time I was doing about 120 mph, I was more than stressed. After doing a great job of giving my front left brake rotor a nice high-speed warp, I was able to trip off the accelerator pedal by using the tip of my foot from beneath it. (Yes, I checked that there were no obstructions causing the accerator to stick.) I experienced this on a couple more occasions until I could break myself of the habit of using the resume function. The cruise control works perfectly otherwise. Could anybody give me any ideas on what this may be... or is my car really trying to kill me?