So, 100 internet years ago you were experimenting with 17" Bimmer wheels.64k miles ?
the sways are the same if you have AWD...I should have added that they might be due to the hardware and depending on year the FE2 may have a limited slip differential...FE1 shocks were a different PN, but they were discontinued. Same springs as FE2, smaller sway bars, 17" wheels.
Take one of your Allante's to your uppity brick paved destinations.Monroe maybe ? The brick streets in Windermere rattle my teeth but Grand Cherokee does not notice. CTS is a bad track day car, wonder why they tried to make it sound like one. Unfortunately ElDorado is no longer made. Maybe an older ETC would have been better but was suckered by the DOHC-6.
I call foul, the CTS can be a fantastic car when equipped with the right suspension and other tuning and will stretch your neck in corners, and braking. It was Motor Trend car of the year. Perhaps it is more modest under acceleration.CTS is a bad track day car, wonder why they tried to make it sound like one.
Cadillac had it pretty much correct, FE1 at 17", FE2 18" and FE3 19". With Padgett's brick road complaint FE2 should be reasonable, FE1, even were it available, would likely allow too much tire bounce.So, 100 internet years ago you were experimenting with 17" Bimmer wheels.
Do you recall if that helped your ride quality?
Not trying to start a battle here and no, I'm not delusional, but everyone's ideas of ride quality are different.
Perhaps new shocks will do the trick, or maybe just a taller, softer sidewall. Or both.
Just throwing it out there.