1972 Dodge Dart Swinger Stance

I have not been calling you names, just said that if they are too stiff then you are too old... Don't take it personally...

Every car I put them on had formula S suspension with front sway bar... No handling problems...

It's not rocket appliances...

(Not that rocket science is difficult....)

If you never had handling problems with those cars, you never tried to handle with them.

We clearly have a completely different idea of what it means to have a good handling car. There's no reason these cars can't keep pace with a brand new car if you turn the traction control off. Tim Werners "red brick" Valiant has hit 160 mph at Portland, and turned faster laps than a C06 there. The Hotchkis Taxi, a 1970 4 door satellite, turns laps faster than a 2012 3 series beemer's on TireRacks test track. Same driver, same tires, 4 door satellite with torsion bars and leaf springs putting down faster laps than a 2012 3 series. That car handles well.

It's nearly 50 year old technology from back before the appearance of the first pocket calculator...

You think that makes a difference? Modern telecommunications satellites are positioned and maintained in orbit using equations derived by Isaac Newton. Orbital mechanics is Newtonian physics. That's 300 year old technology. Sure nowadays a computer does all the math and plots the course, but it's the same math as 300 years ago. Just gets done faster.

The 2017 Ford GT supercar has a torsion bar front suspension, that's 60+ year old technology. The new C07 corvette uses a transverse leaf spring for its rear suspension. Henry Ford used those for Model A's. Repackaged a bit sure, absolutely. But the physics hasn't changed. The physics has never changed, neither has the math. There were electric cars before 1900. These are not new ideas. Tire compounds and shocks have gotten better, horsepower increased, etc. But the suspension does the exact same thing, the same equations are used to design it, and the same physics applies.