They said when I cornered hard on the autocross course, it leans over so far a small person could walk under it. Feels ok or me, tires bite, no sideways movement , doesn't give me a sense of rolling all the way over.

 

very difficult to make the XJ-6 flip over, the cornering lean is by design, the center of gravity of thecar is very low, but you should see the Italian movies off the 1960's when the Jaguar MK-2 was cornering at 90mph, the right rear tire would be in the air when cornering to the right, so the car was actually cornering on 3 tires, and they never flipped.

 

Good to hear. I have resisted stiffer sway bars. I did install a rear bar off of an XJS. All suspension pivots are urethane,