The car is back. Almost didn't look the same. We went for a test ride, first with Pete driving, then me. We approached a ninety degree left, and Pete told me to downshift to second. Somehow or other, my mind heard "downshift to second and power through the corner". Right rear off the road, lots of stuff flying, noise - then back on the road not knowing how much damage had been done to the bodywork. At the next stop sign, Pete gets out to look and sees pretty much just mud, leaves, and dirt - nothing dented, thankfully. A good spray with a hose took care of it!
Why did this happen?
The car has more power! I wasn't expecting the acceleration I got! (I also think I really wasn't concentrating properly - I just completed an unpleasant business call that was still on my mind.)
Anyway, back to the important stuff. Cornering power is much improved (despite what happened) and there's notably more energy. Can't tell about the brakes yet, they needed to be broken in (I think I accomplished that last night - after the incident).
Overall, I'm delighted with the results. Pete, sorry if I scared you - but a big THANKS.